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[arch-security] [ASA-201711-30] powerdns: access restriction bypass
by Remi Gacogne 27 Nov '17

27 Nov '17

Arch Linux Security Advisory ASA-201711-30 ========================================== Severity: Low Date : 2017-11-27 CVE-ID : CVE-2017-15091 Package : powerdns Type : access restriction bypass Remote : Yes Link : https://security.archlinux.org/AVG-519 Summary ======= The package powerdns before version 4.0.5-1 is vulnerable to access restriction bypass. Resolution ========== Upgrade to 4.0.5-1. # pacman -Syu "powerdns>=4.0.5-1" The problem has been fixed upstream in version 4.0.5. Workaround ========== None. Description =========== An issue has been found in the API component of PowerDNS Authoritative < 4.0.5, where some operations that have an impact on the state of the server are still allowed even though the API has been configured as read-only via the 'api-readonly' keyword. This missing check allows an attacker with valid API credentials could flush the cache, trigger a zone transfer or send a NOTIFY. Impact ====== A remote, authenticated attacker can flush the cache, trigger a zone transfer or send a NOTIFY through the API even though it was configured as read-only. References ========== http://seclists.org/oss-sec/2017/q4/329 https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisor… https://github.com/PowerDNS/pdns/commit/245a2c8211db2f6c5771f93671e4eb80d4e… https://security.archlinux.org/CVE-2017-15091

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[arch-security] [ASA-201711-29] varnish: information disclosure
by Morten Linderud 26 Nov '17

26 Nov '17

Arch Linux Security Advisory ASA-201711-29 ========================================== Severity: Medium Date : 2017-11-26 CVE-ID : CVE-2017-8807 Package : varnish Type : information disclosure Remote : Yes Link : https://security.archlinux.org/AVG-502 Summary ======= The package varnish before version 5.2.1-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 5.2.1-1. # pacman -Syu "varnish>=5.2.1-1" The problem has been fixed upstream in version 5.2.1. Workaround ========== None. Description =========== vbf_stp_error in bin/varnishd/cache/cache_fetch.c in Varnish HTTP Cache 4.1.x before 4.1.9 and 5.x before 5.2.1 allows remote attackers to obtain sensitive information from process memory because a VFP_GetStorage buffer is larger than intended in certain circumstances involving -sfile Stevedore transient objects. Impact ====== A remote attacker is able to retrieve sensitive information from the process memory. References ========== https://bugs.archlinux.org/task/56376 https://varnish-cache.org/security/VSV00002.html https://github.com/varnishcache/varnish-cache/commit/176f8a075a963ffbfa56f1… https://github.com/varnishcache/varnish-cache/pull/2429 https://security.archlinux.org/CVE-2017-8807

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[arch-security] [ASA-201711-28] jbig2dec: denial of service
by Morten Linderud 22 Nov '17

22 Nov '17

Arch Linux Security Advisory ASA-201711-28 ========================================== Severity: Medium Date : 2017-11-22 CVE-ID : CVE-2017-9216 Package : jbig2dec Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-517 Summary ======= The package jbig2dec before version 0.14-1 is vulnerable to denial of service. Resolution ========== Upgrade to 0.14-1. # pacman -Syu "jbig2dec>=0.14-1" The problem has been fixed upstream in version 0.14. Workaround ========== None. Description =========== libjbig2dec.a in Artifex jbig2dec 0.13, as used in MuPDF and Ghostscript, has a NULL pointer dereference in the jbig2_huffman_get function in jbig2_huffman.c. For example, the jbig2dec utility will crash (segmentation fault) when parsing an invalid file. Impact ====== A remote attacker is able to crash the application by providing an invalid file. References ========== https://bugs.archlinux.org/task/56405 https://bugs.ghostscript.com/show_bug.cgi?id=697934 https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=3ebffb1d96ba0cac… https://security.archlinux.org/CVE-2017-9216

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[arch-security] [ASA-201711-27] roundcubemail: arbitrary filesystem access
by Morten Linderud 21 Nov '17

21 Nov '17

Arch Linux Security Advisory ASA-201711-27 ========================================== Severity: High Date : 2017-11-21 CVE-ID : CVE-2017-16651 Package : roundcubemail Type : arbitrary filesystem access Remote : Yes Link : https://security.archlinux.org/AVG-506 Summary ======= The package roundcubemail before version 1.3.3-1 is vulnerable to arbitrary filesystem access. Resolution ========== Upgrade to 1.3.3-1. # pacman -Syu "roundcubemail>=1.3.3-1" The problem has been fixed upstream in version 1.3.3. Workaround ========== None. Description =========== Roundcube Webmail 1.3.x before 1.3.3 allows unauthorized access to arbitrary files on the host's filesystem, including configuration files, as exploited in the wild in November 2017. The attacker must be able to authenticate at the target system with a valid username/password as the attack requires an active session. The issue is related to file-based attachment plugins and _task=settings&_action=upload-display&_from=timezone requests. Impact ====== A remote authenticated non-admin user is able to read arbitrary files on the affected host. References ========== https://github.com/roundcube/roundcubemail/commit/c90ad5a97784fb32683b8e3c2… https://github.com/roundcube/roundcubemail/issues/6026 https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.… https://security.archlinux.org/CVE-2017-16651

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[arch-security] [ASA-201711-26] lib32-icu: arbitrary code execution
by Morten Linderud 20 Nov '17

20 Nov '17

Arch Linux Security Advisory ASA-201711-26 ========================================== Severity: Critical Date : 2017-11-20 CVE-ID : CVE-2017-14952 Package : lib32-icu Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-507 Summary ======= The package lib32-icu before version 60.1-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 60.1-1. # pacman -Syu "lib32-icu>=60.1-1" The problem has been fixed upstream in version 60.1. Workaround ========== None. Description =========== Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++ through 59.1 allows remote attackers to execute arbitrary code via a crafted string, aka a "redundant UVector entry clean up function call" issue. Impact ====== A remote attacker is able to execute arbitrary code on the affected host via a specially crafted string. References ========== http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zo… http://www.sourcebrella.com/blog/double-free-vulnerability-international-co… https://security.archlinux.org/CVE-2017-14952

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[arch-security] [ASA-201711-25] icu: arbitrary code execution
by Morten Linderud 20 Nov '17

20 Nov '17

Arch Linux Security Advisory ASA-201711-25 ========================================== Severity: Critical Date : 2017-11-19 CVE-ID : CVE-2017-14952 Package : icu Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-504 Summary ======= The package icu before version 60.1-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 60.1-1. # pacman -Syu "icu>=60.1-1" The problem has been fixed upstream in version 60.1. Workaround ========== None. Description =========== Double free in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++ through 59.1 allows remote attackers to execute arbitrary code via a crafted string, aka a "redundant UVector entry clean up function call" issue. Impact ====== A remote attacker is able to execute arbitrary code on the affected host via a specially crafted string. References ========== http://bugs.icu-project.org/trac/changeset/40324/trunk/icu4c/source/i18n/zo… http://www.sourcebrella.com/blog/double-free-vulnerability-international-co… https://security.archlinux.org/CVE-2017-14952

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[arch-security] [ASA-201711-24] couchdb: multiple issues
by Morten Linderud 16 Nov '17

16 Nov '17

Arch Linux Security Advisory ASA-201711-24 ========================================== Severity: High Date : 2017-11-16 CVE-ID : CVE-2017-12635 CVE-2017-12636 Package : couchdb Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-495 Summary ======= The package couchdb before version 2.1.1-1 is vulnerable to multiple issues including privilege escalation and arbitrary command execution. Resolution ========== Upgrade to 2.1.1-1. # pacman -Syu "couchdb>=2.1.1-1" The problems have been fixed upstream in version 2.1.1. Workaround ========== None. Description =========== - CVE-2017-12635 (privilege escalation) Due to differences in the Erlang-based JSON parser and JavaScript-based JSON parser, it is possible in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to submit _users documents with duplicate keys for 'roles' used for access control within the database, including the special case '_admin' role, that denotes administrative users. In combination with CVE-2017-12636 (remote command execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two 'roles' keys are available in the JSON, the second one will be used for authorising the document write, but the first 'roles' key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges. - CVE-2017-12636 (arbitrary command execution) CouchDB administrative users can configure the database server via HTTP(S). Some of the configuration options include paths for operating system-level binaries that are subsequently launched by CouchDB. This allows an admin user in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to execute arbitrary shell commands as the CouchDB user, including downloading and executing scripts from the public internet. Impact ====== A remote authenticated non-admin user is able to escalate privileges and execute arbitrary commands on the affected host. References ========== https://lists.apache.org/thread.html/6c405bf3f8358e6314076be9f48c89a2e0ddf0… https://justi.cz/security/2017/11/14/couchdb-rce-npm.html https://github.com/apache/couchdb/commit/e01f3009b59a00d81dd1f6d4e807afab08… https://github.com/apache/couchdb/commit/da27d4dcc7a98c76486f97c356f1c0f4a6… https://security.archlinux.org/CVE-2017-12635 https://security.archlinux.org/CVE-2017-12636

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[arch-security] [ASA-201711-23] firefox: multiple issues
by Remi Gacogne 16 Nov '17

16 Nov '17

Arch Linux Security Advisory ASA-201711-23 ========================================== Severity: Critical Date : 2017-11-15 CVE-ID : CVE-2017-7826 CVE-2017-7827 CVE-2017-7828 CVE-2017-7830 CVE-2017-7831 CVE-2017-7832 CVE-2017-7833 CVE-2017-7834 CVE-2017-7835 CVE-2017-7836 CVE-2017-7837 CVE-2017-7838 CVE-2017-7839 CVE-2017-7840 CVE-2017-7842 Package : firefox Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-494 Summary ======= The package firefox before version 57.0-1 is vulnerable to multiple issues including arbitrary code execution, same-origin policy bypass, access restriction bypass, content spoofing, information disclosure, privilege escalation and cross-site scripting. Resolution ========== Upgrade to 57.0-1. # pacman -Syu "firefox>=57.0-1" The problems have been fixed upstream in version 57.0. Workaround ========== None. Description =========== - CVE-2017-7826 (arbitrary code execution) Several reported memory safety bugs have been found in Firefox before 57.0. Some of these bugs showed evidence of memory corruption and with enough effort some of these could probably be exploited to run arbitrary code. - CVE-2017-7827 (arbitrary code execution) Several memory safety bugs have been found in Firefox before 57.0. Some of these bugs showed evidence of memory corruption and with enough effort some of these could probably be exploited to run arbitrary code. - CVE-2017-7828 (arbitrary code execution) A use-after-free vulnerability can occur in Firefox before 57.0 when flushing and resizing layout because the PressShell object has been freed while still in use. This results in a potentially exploitable crash during these operations. - CVE-2017-7830 (same-origin policy bypass) The Resource Timing API in Firefox before 57.0 incorrectly revealed navigations in cross-origin iframes. This is a same-origin policy violation and could allow for data theft of URLs loaded by users. - CVE-2017-7831 (information disclosure) A vulnerability has been found in Firefox before 57.0 where the security wrapper does not deny access to some exposed properties using the deprecated exposedProps mechanism on proxy objects. These properties should be explicitly unavailable to proxy objects. - CVE-2017-7832 (content spoofing) The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar of Firefox before 57.0 by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. - CVE-2017-7833 (content spoofing) Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar of Firefox before 57.0. The non- Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. - CVE-2017-7834 (access restriction bypass) A data: URL loaded in a new tab of Firefox before 57.0 did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when data: documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. - CVE-2017-7835 (access restriction bypass) Mixed content blocking of insecure (HTTP) sub-resources in a secure (HTTPS) document was not correctly applied for resources that redirect from HTTPS to HTTP, allowing content that should be blocked, such as scripts, to be loaded on a page in Firefox before 57.0. - CVE-2017-7836 (privilege escalation) The "pingsender" executable used by the Firefox Health Report before 57.0 dynamically loads a system copy of libcurl, which an attacker could replace. This allows for privilege escalation as the replaced libcurl code will run with Firefox's privileges. This attack requires an attacker have local system access. - CVE-2017-7837 (same-origin policy bypass) SVG loaded through <img> tags in Firefox before 57.0 can use <meta> tags within the SVG data to set cookies for that page. - CVE-2017-7838 (content spoofing) Punycode format text in Firefox before 57.0 will be displayed for entire qualified international domain names in some instances when a sub-domain triggers the punycode display instead of the primary domain being displayed in native script and the sub-domain only displaying as punycode. This could be used for limited spoofing attacks due to user confusion. - CVE-2017-7839 (cross-site scripting) Control characters prepended before javascript: URLs pasted in the addressbar in Firefox before 57.0 can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site- scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. - CVE-2017-7840 (cross-site scripting) JavaScript can be injected into an exported bookmarks file by placing JavaScript code into user-supplied tags in saved bookmarks in Firefox before 57.0. If the resulting exported HTML file is later opened in a browser this JavaScript will be executed. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks if users were convinced to add malicious tags to bookmarks, export them, and then open the resulting file. - CVE-2017-7842 (information disclosure) If a document’s Referrer Policy attribute is set to "no-referrer" sometimes two network requests are made for <link> elements instead of one in Firefox before 57.0. One of these requests includes the referrer instead of respecting the set policy to not include a referrer on requests. Impact ====== A remote attacker can bypass the same-origin policy or the content security policy, spoof the content of the addressbar, trick a user into a self-XSS attack, access sensitive information or execute arbitrary code on the affected host. A local attacker might be able to escalate privilege. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/ https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7826 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1394530%2C1369561%2C1411458… https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7827 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1399922%2C1403646%2C1403716… https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7828 https://bugzilla.mozilla.org/show_bug.cgi?id=1406750 https://bugzilla.mozilla.org/show_bug.cgi?id=1412252 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7830 https://bugzilla.mozilla.org/show_bug.cgi?id=1408990 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7831 https://bugzilla.mozilla.org/show_bug.cgi?id=1392026 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7832 https://bugzilla.mozilla.org/show_bug.cgi?id=1408782 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7833 https://bugzilla.mozilla.org/show_bug.cgi?id=1370497 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7834 https://bugzilla.mozilla.org/show_bug.cgi?id=1358009 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7835 https://bugzilla.mozilla.org/show_bug.cgi?id=1402363 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7836 https://bugzilla.mozilla.org/show_bug.cgi?id=1401339 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7837 https://bugzilla.mozilla.org/show_bug.cgi?id=1325923 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7838 https://bugzilla.mozilla.org/show_bug.cgi?id=1399540 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7839 https://bugzilla.mozilla.org/show_bug.cgi?id=1402896 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7840 https://bugzilla.mozilla.org/show_bug.cgi?id=1366420 https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/#CVE-2017-7842 https://bugzilla.mozilla.org/show_bug.cgi?id=1397064 https://security.archlinux.org/CVE-2017-7826 https://security.archlinux.org/CVE-2017-7827 https://security.archlinux.org/CVE-2017-7828 https://security.archlinux.org/CVE-2017-7830 https://security.archlinux.org/CVE-2017-7831 https://security.archlinux.org/CVE-2017-7832 https://security.archlinux.org/CVE-2017-7833 https://security.archlinux.org/CVE-2017-7834 https://security.archlinux.org/CVE-2017-7835 https://security.archlinux.org/CVE-2017-7836 https://security.archlinux.org/CVE-2017-7837 https://security.archlinux.org/CVE-2017-7838 https://security.archlinux.org/CVE-2017-7839 https://security.archlinux.org/CVE-2017-7840 https://security.archlinux.org/CVE-2017-7842

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[arch-security] [ASA-201711-22] lib32-flashplugin: arbitrary code execution
by Levente Polyak 15 Nov '17

15 Nov '17

Arch Linux Security Advisory ASA-201711-22 ========================================== Severity: Critical Date : 2017-11-15 CVE-ID : CVE-2017-11213 CVE-2017-11215 CVE-2017-11225 CVE-2017-3112 CVE-2017-3114 Package : lib32-flashplugin Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-493 Summary ======= The package lib32-flashplugin before version 27.0.0.187-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 27.0.0.187-1. # pacman -Syu "lib32-flashplugin>=27.0.0.187-1" The problems have been fixed upstream in version 27.0.0.187. Workaround ========== None. Description =========== - CVE-2017-11213 (arbitrary code execution) An out-of-bounds access vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-11215 (arbitrary code execution) An use after free vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-11225 (arbitrary code execution) An use after free vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-3112 (arbitrary code execution) An out-of-bounds access vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-3114 (arbitrary code execution) An out-of-bounds access vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. Impact ====== A remote attacker is able to execute arbitrary code on the affected host via a specially crafted SWF file. References ========== https://helpx.adobe.com/security/products/flash-player/apsb17-33.html https://security.archlinux.org/CVE-2017-11213 https://security.archlinux.org/CVE-2017-11215 https://security.archlinux.org/CVE-2017-11225 https://security.archlinux.org/CVE-2017-3112 https://security.archlinux.org/CVE-2017-3114

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[arch-security] [ASA-201711-21] flashplugin: arbitrary code execution
by Levente Polyak 15 Nov '17

15 Nov '17

Arch Linux Security Advisory ASA-201711-21 ========================================== Severity: Critical Date : 2017-11-15 CVE-ID : CVE-2017-11213 CVE-2017-11215 CVE-2017-11225 CVE-2017-3112 CVE-2017-3114 Package : flashplugin Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-492 Summary ======= The package flashplugin before version 27.0.0.187-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 27.0.0.187-1. # pacman -Syu "flashplugin>=27.0.0.187-1" The problems have been fixed upstream in version 27.0.0.187. Workaround ========== None. Description =========== - CVE-2017-11213 (arbitrary code execution) An out-of-bounds access vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-11215 (arbitrary code execution) An use after free vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-11225 (arbitrary code execution) An use after free vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-3112 (arbitrary code execution) An out-of-bounds access vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. - CVE-2017-3114 (arbitrary code execution) An out-of-bounds access vulnerability has been discovered in flashplugin before 27.0.0.187 leading to arbitrary code execution when playing a specially crafted SWF file. Impact ====== A remote attacker is able to execute arbitrary code on the affected host via a specially crafted SWF file. References ========== https://helpx.adobe.com/security/products/flash-player/apsb17-33.html https://security.archlinux.org/CVE-2017-11213 https://security.archlinux.org/CVE-2017-11215 https://security.archlinux.org/CVE-2017-11225 https://security.archlinux.org/CVE-2017-3112 https://security.archlinux.org/CVE-2017-3114

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