July 2018 - Arch-security - lists.archlinux.org

[ASA-201807-6] lib32-libcurl-compat: arbitrary code execution
by Morten Linderud 17 Jul '18

17 Jul '18

Arch Linux Security Advisory ASA-201807-6 ========================================= Severity: High Date : 2018-07-16 CVE-ID : CVE-2018-0500 Package : lib32-libcurl-compat Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-731 Summary ======= The package lib32-libcurl-compat before version 7.61.0-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 7.61.0-1. # pacman -Syu "lib32-libcurl-compat>=7.61.0-1" The problem has been fixed upstream in version 7.61.0. Workaround ========== None. Description =========== It has been discovered that curl before 7.61.0 might overflow a heap based memory buffer when sending data over SMTP and using a reduced read buffer. When sending data over SMTP, curl allocates a separate "scratch area" on the heap to be able to escape the uploaded data properly if the uploaded data contains data that requires it. The size of this temporary scratch area was mistakenly made to be 2 * sizeof(download_buffer) when it should have been made 2 * sizeof(upload_buffer). The upload and the download buffer sizes are identically sized by default (16KB) but since version 7.54.1, curl can resize the download buffer into a smaller buffer (as well as larger). If the download buffer size is set to a value smaller than 10923, the Curl_smtp_escape_eob() function might overflow the scratch buffer when sending contents of sufficient size and contents. The curl command line tool lowers the buffer size when --limit-rate is set to a value smaller than 16KB. Impact ====== A remote attacker is able to execute arbitrary code when sending SMTP data. References ========== https://curl.haxx.se/docs/adv_2018-70a2.html https://security.archlinux.org/CVE-2018-0500

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[ASA-201807-5] lib32-curl: arbitrary code execution
by Morten Linderud 17 Jul '18

17 Jul '18

Arch Linux Security Advisory ASA-201807-5 ========================================= Severity: High Date : 2018-07-16 CVE-ID : CVE-2018-0500 Package : lib32-curl Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-730 Summary ======= The package lib32-curl before version 7.61.0-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 7.61.0-1. # pacman -Syu "lib32-curl>=7.61.0-1" The problem has been fixed upstream in version 7.61.0. Workaround ========== None. Description =========== It has been discovered that curl before 7.61.0 might overflow a heap based memory buffer when sending data over SMTP and using a reduced read buffer. When sending data over SMTP, curl allocates a separate "scratch area" on the heap to be able to escape the uploaded data properly if the uploaded data contains data that requires it. The size of this temporary scratch area was mistakenly made to be 2 * sizeof(download_buffer) when it should have been made 2 * sizeof(upload_buffer). The upload and the download buffer sizes are identically sized by default (16KB) but since version 7.54.1, curl can resize the download buffer into a smaller buffer (as well as larger). If the download buffer size is set to a value smaller than 10923, the Curl_smtp_escape_eob() function might overflow the scratch buffer when sending contents of sufficient size and contents. The curl command line tool lowers the buffer size when --limit-rate is set to a value smaller than 16KB. Impact ====== A remote attacker is able to execute arbitrary code when sending SMTP data. References ========== https://curl.haxx.se/docs/adv_2018-70a2.html https://security.archlinux.org/CVE-2018-0500

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[ASA-201807-4] thunderbird: multiple issues
by Morten Linderud 17 Jul '18

17 Jul '18

Arch Linux Security Advisory ASA-201807-4 ========================================= Severity: Critical Date : 2018-07-16 CVE-ID : CVE-2018-5188 CVE-2018-12359 CVE-2018-12360 CVE-2018-12362 CVE-2018-12363 CVE-2018-12364 CVE-2018-12365 CVE-2018-12366 CVE-2018-12372 CVE-2018-12373 CVE-2018-12374 Package : thunderbird Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-728 Summary ======= The package thunderbird before version 52.9.1-1 is vulnerable to multiple issues including arbitrary code execution, cross-site request forgery and information disclosure. Resolution ========== Upgrade to 52.9.1-1. # pacman -Syu "thunderbird>=52.9.1-1" The problems have been fixed upstream in version 52.9.1. Workaround ========== None. Description =========== - CVE-2018-5188 (arbitrary code execution) Several memory safety bugs have been found in Firefox before 61.0 and Thunderbird before 52.9. Some of these bugs showed evidence of memory corruption and Mozilla presumes that with enough effort some of these could be exploited to run arbitrary code. - CVE-2018-12359 (arbitrary code execution) A buffer overflow can occur in Firefox before 61.0 and Thunderbird before 52.9 when rendering canvas content while adjusting the height and width of the <canvas> element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. - CVE-2018-12360 (arbitrary code execution) A use-after-free vulnerability can occur in Firefox before 61.0 and Thunderbird before 52.9 when deleting an input element during a mutation event handler triggered by focusing that element. This results in a potentially exploitable crash. - CVE-2018-12362 (arbitrary code execution) An integer overflow can occur in Firefox before 61.0 and Thunderbird before 52.9 during graphics operations done by the Supplemental Streaming SIMD Extensions 3 (SSSE3) scaler, resulting in a potentially exploitable crash. - CVE-2018-12363 (arbitrary code execution) A use-after-free vulnerability can occur in Firefox before 61.0 and Thunderbird before 52.9 when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. - CVE-2018-12364 (cross-site request forgery) A security issue has been found in Firefox before 61.0 and Thunderbird before 52.9, where NPAPI plugins, such as Adobe Flash, can send non- simple cross-origin requests, bypassing CORS by making a same-origin POST that does a 307 redirect to the target site. This allows for a malicious site to engage in cross-site request forgery (CSRF) attacks. - CVE-2018-12365 (information disclosure) A security issue has been found in Firefox before 61.0 and Thunderbird before 52.9 where a compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent or interaction. This could result in exposure of private local files. - CVE-2018-12366 (information disclosure) An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value, in Firefox before 61.0 and Thunderbird before 52.9. This could leak private data into the output. - CVE-2018-12372 (information disclosure) A security issue has been found in Thunderbird before 52.9, where decrypted S/MIME parts, when included in HTML crafted for an attack, can leak plaintext when included in a HTML reply/forward. - CVE-2018-12373 (information disclosure) A security issue has been found in Thunderbird before 52.9, where S/MIME parts hidden with CSS or <plaintext> can leak plaintext when included in a HTML reply/forward. - CVE-2018-12374 (information disclosure) A security issue has been found in Thunderbird before 52.9, where plaintext of decrypted emails can leak through by user submitting an embedded form by pressing enter key within a text input field. Impact ====== A remote attacker can access sensitive information, bypass various security mechanisms and execute arbitrary code on the affected host. References ========== https://www.mozilla.org/en-US/security/advisories/mfsa2018-18 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-5188 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1456189%2C1456975%2C1465898… https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1459162 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1459693 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1452375 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1464784 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1436241 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1459206 https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1464039 https://www.mozilla.org/en-US/security/advisories/mfsa2018-18/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1419417 https://www.mozilla.org/en-US/security/advisories/mfsa2018-18/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1464056 https://bugzilla.mozilla.org/show_bug.cgi?id=1464667 https://www.mozilla.org/en-US/security/advisories/mfsa2018-18/#CVE-2018-123… https://bugzilla.mozilla.org/show_bug.cgi?id=1462910 https://security.archlinux.org/CVE-2018-5188 https://security.archlinux.org/CVE-2018-12359 https://security.archlinux.org/CVE-2018-12360 https://security.archlinux.org/CVE-2018-12362 https://security.archlinux.org/CVE-2018-12363 https://security.archlinux.org/CVE-2018-12364 https://security.archlinux.org/CVE-2018-12365 https://security.archlinux.org/CVE-2018-12366 https://security.archlinux.org/CVE-2018-12372 https://security.archlinux.org/CVE-2018-12373 https://security.archlinux.org/CVE-2018-12374

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[ASA-201807-3] qutebrowser: arbitrary code execution
by Morten Linderud 11 Jul '18

11 Jul '18

Arch Linux Security Advisory ASA-201807-3 ========================================= Severity: Critical Date : 2018-07-11 CVE-ID : CVE-2018-10895 Package : qutebrowser Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-735 Summary ======= The package qutebrowser before version 1.4.1-1 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 1.4.1-1. # pacman -Syu "qutebrowser>=1.4.1-1" The problem has been fixed upstream in version 1.4.1. Workaround ========== It's possible to patch out the vulnerable code via a config.py file from qutebrowser.browser import qutescheme qutescheme._qute_settings_set = lambda url: ('text/html', '') Description =========== Due to a CSRF vulnerability affecting the qute://settings page, it was possible for websites to modify qutebrowser settings. Via settings like editor.command, this possibly allowed websites to execute arbitrary code. Impact ====== A remote attacker is able to execute code with a specially crafted web page. References ========== https://github.com/qutebrowser/qutebrowser/commit/43e58ac865ff862c2008c510f… https://github.com/qutebrowser/qutebrowser/issues/4060 https://security.archlinux.org/CVE-2018-10895

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[ASA-201807-2] git-annex: multiple issues
by Jelle van der Waa 04 Jul '18

04 Jul '18

Arch Linux Security Advisory ASA-201807-2 ========================================= Severity: High Date : 2018-07-04 CVE-ID : CVE-2018-10857 CVE-2018-10859 Package : git-annex Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-725 Summary ======= The package git-annex before version 6.20180626-1 is vulnerable to multiple issues including arbitrary filesystem access and information disclosure. Resolution ========== Upgrade to 6.20180626-1. # pacman -Syu "git-annex>=6.20180626-1" The problems have been fixed upstream in version 6.20180626. Workaround ========== None. Description =========== - CVE-2018-10857 (arbitrary filesystem access) Some uses of git-annex were vulnerable to a private data exposure and exfiltration attack. It could expose the content of files located outside the git-annex repository, or content from a private web server on localhost or the LAN. - CVE-2018-10859 (information disclosure) A malicious server for a special remote could trick git-annex into decrypting a file that was encrypted to the user's gpg key. This attack could be used to expose encrypted data that was never stored in git- annex Impact ====== A remote attacker is able to read arbitrary files on the filesystem or decrypt encrypted files by modifying the git-annex repository. References ========== https://git-annex.branchable.com/security/CVE-2018-10857_and_CVE-2018-10859/ https://git.joeyh.name/index.cgi/git-annex.git/commit/?id=b54b2cdc0ef1373fc… https://security.archlinux.org/CVE-2018-10857 https://security.archlinux.org/CVE-2018-10859

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[ASA-201807-1] gitlab: multiple issues
by Jelle van der Waa 04 Jul '18

04 Jul '18

Arch Linux Security Advisory ASA-201807-1 ========================================= Severity: Medium Date : 2018-07-04 CVE-ID : CVE-2018-3740 CVE-2018-12606 CVE-2018-12607 Package : gitlab Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-726 Summary ======= The package gitlab before version 11.0.1-1 is vulnerable to multiple issues including cross-site scripting and insufficient validation. Resolution ========== Upgrade to 11.0.1-1. # pacman -Syu "gitlab>=11.0.1-1" The problems have been fixed upstream in version 11.0.1. Workaround ========== None. Description =========== - CVE-2018-3740 (insufficient validation) A specially crafted HTML fragment can cause Sanitize gem for Ruby to allow non-whitelisted attributes to be used on a whitelisted HTML element. - CVE-2018-12606 (cross-site scripting) The wiki contains a persistent XSS issue due to a lack of output encoding affecting a specific markdown feature. - CVE-2018-12607 (cross-site scripting) The charts feature contained a persistent XSS issue due to a lack of output encoding. Impact ====== An attacker is able to use a GitLab server to execute malicious Javascript code on its users via a crafted HTML chart or specific markdown features. References ========== https://about.gitlab.com/2018/06/25/security-release-gitlab-11-dot-0-dot-1-… https://security.archlinux.org/CVE-2018-3740 https://security.archlinux.org/CVE-2018-12606 https://security.archlinux.org/CVE-2018-12607

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