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[arch-security] [ASA-201503-14] ecryptfs-utils: hard-coded passphrase salt
by Levente Polyak 17 Mar '15

17 Mar '15

Arch Linux Security Advisory ASA-201503-14 ========================================== Severity: Low Date : 2015-03-17 CVE-ID : CVE-2014-9687 Package : ecryptfs-utils Type : hard-coded passphrase salt Remote : No Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package ecryptfs-utils before version 106-1 is vulnerable to hard-coded passphrase salt that may ease a brute-force attack. Resolution ========== Upgrade to 106-1. # pacman -Syu "ecryptfs-utils>=106-1" The problem has been fixed upstream in version 106. If pam_ecryptfs is used a transparent migration from version 1 to version 2 files is provided, otherwise a manual re-wrapping of the passphrase file is mandatory. Workaround ========== None. Description =========== eCryptfs uses a default salt to encrypt the mount passphrase, which makes it easier for attackers to obtain user passwords via a brute force attack. By default, the wrapping key is hashed with the default fixed salt (0x0011223344556677). This update introduces the version 2 wrapped-passphrase file format. It adds the ability to combine a randomly generated salt with the wrapping password (typically, a user's login password) prior to performing key strengthening. The version 2 file format is considered to be a intermediate step in strengthening the wrapped-passphrase files of existing encrypted home/private users. If pam_ecryptfs is used a transparent migration from version 1 to version 2 files is provided, otherwise a manual re-wrapping of the passphrase file is mandatory. Impact ====== An attacker could use this issue to discover the login password used to protect the mount passphrase and gain unintended access to the encrypted files with the help of bulk dictionary attacks and rainbow tables to crack user passwords. References ========== http://www.openwall.com/lists/oss-security/2015/02/10/10 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9687 https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/839 https://bugs.archlinux.org/task/44157

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[arch-security] [ASA-201503-13] ettercap-gtk: multiple issues
by Levente Polyak 16 Mar '15

16 Mar '15

Arch Linux Security Advisory ASA-201503-13 ========================================== Severity: High Date : 2015-03-17 CVE-ID : CVE-2014-6395 CVE-2014-6396 CVE-2014-9376 CVE-2014-9377 CVE-2014-9378 CVE-2014-9379 CVE-2014-9380 CVE-2014-9381 Package : ettercap-gtk Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package ettercap-gtk before version 0.8.2-1 is vulnerable to multiple issues including but not limited to arbitrary code execution, arbitrary memory write and denial of service. Resolution ========== Upgrade to 0.8.2-1. # pacman -Syu "ettercap-gtk>=0.8.2-1" The problems have been fixed upstream in version 0.8.2. Workaround ========== None. Description =========== - CVE-2014-6395 (arbitrary code execution) Heap-based buffer overflow in the dissector_postgresql function in dissectors/ec_postgresql.c allows remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted password length value that is inconsistent with the actual length of the password. - CVE-2014-6396 (arbitrary memory write) The dissector_postgresql function in dissectors/ec_postgresql.c allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted password length, which triggers a 0 character to be written to an arbitrary memory location. - CVE-2014-9376 (arbitrary code execution) Integer underflow allows remote attackers to cause a denial of service (out-of-bounds write) and possibly execute arbitrary code via a small (1) size variable value in the dissector_dhcp function in dissectors/ec_dhcp.c, (2) length value to the dissector_gg function in dissectors/ec_gg.c, or (3) string length to the get_decode_len function in ec_utils.c or a request without a (4) username or (5) password to the dissector_TN3270 function in dissectors/ec_TN3270.c. - CVE-2014-9377 (arbitrary code execution) Heap-based buffer overflow in the nbns_spoof function in plug-ins/nbns_spoof/nbns_spoof.c allows remote attackers to cause a denial of service or possibly execute arbitrary code via a large netbios packet. - CVE-2014-9378 (arbitrary code execution) Ettercap does not validate certain return values, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted (1) name to the parse_line function in mdns_spoof/mdns_spoof.c or (2) base64 encoded password to the dissector_imap function in dissectors/ec_imap.c. - CVE-2014-9379 (arbitrary code execution) The radius_get_attribute function in dissectors/ec_radius.c performs an incorrect cast, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors, which triggers a stack-based buffer overflow. - CVE-2014-9380 (denial of service) The dissector_cvs function in dissectors/ec_cvs.c allows remote attackers to cause a denial of service (out-of-bounds read) via a packet containing only a CVS_LOGIN signature. - CVE-2014-9381 (denial of service) Integer signedness error in the dissector_cvs function in dissectors/ec_cvs.c allows remote attackers to cause a denial of service (crash) via a crafted password, which triggers a large memory allocation. Impact ====== A remote attacker is able to send specially crafted packets to perform arbitrary code execution, arbitrary memory write or denial of service via various vectors. References ========== https://www.obrela.com/home/security-labs/advisories/osi-advisory-osi-1402/ https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6395 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6396 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9376 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9377 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9378 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9379 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9380 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9381 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9395 https://bugs.archlinux.org/task/44174

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[arch-security] [ASA-201503-12] ettercap: multiple issues
by Levente Polyak 16 Mar '15

16 Mar '15

Arch Linux Security Advisory ASA-201503-12 ========================================== Severity: High Date : 2015-03-17 CVE-ID : CVE-2014-6395 CVE-2014-6396 CVE-2014-9376 CVE-2014-9377 CVE-2014-9378 CVE-2014-9379 CVE-2014-9380 CVE-2014-9381 Package : ettercap Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package ettercap before version 0.8.2-1 is vulnerable to multiple issues including but not limited to arbitrary code execution, arbitrary memory write and denial of service. Resolution ========== Upgrade to 0.8.2-1. # pacman -Syu "ettercap>=0.8.2-1" The problems have been fixed upstream in version 0.8.2. Workaround ========== None. Description =========== - CVE-2014-6395 (arbitrary code execution) Heap-based buffer overflow in the dissector_postgresql function in dissectors/ec_postgresql.c allows remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted password length value that is inconsistent with the actual length of the password. - CVE-2014-6396 (arbitrary memory write) The dissector_postgresql function in dissectors/ec_postgresql.c allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted password length, which triggers a 0 character to be written to an arbitrary memory location. - CVE-2014-9376 (arbitrary code execution) Integer underflow allows remote attackers to cause a denial of service (out-of-bounds write) and possibly execute arbitrary code via a small (1) size variable value in the dissector_dhcp function in dissectors/ec_dhcp.c, (2) length value to the dissector_gg function in dissectors/ec_gg.c, or (3) string length to the get_decode_len function in ec_utils.c or a request without a (4) username or (5) password to the dissector_TN3270 function in dissectors/ec_TN3270.c. - CVE-2014-9377 (arbitrary code execution) Heap-based buffer overflow in the nbns_spoof function in plug-ins/nbns_spoof/nbns_spoof.c allows remote attackers to cause a denial of service or possibly execute arbitrary code via a large netbios packet. - CVE-2014-9378 (arbitrary code execution) Ettercap does not validate certain return values, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted (1) name to the parse_line function in mdns_spoof/mdns_spoof.c or (2) base64 encoded password to the dissector_imap function in dissectors/ec_imap.c. - CVE-2014-9379 (arbitrary code execution) The radius_get_attribute function in dissectors/ec_radius.c performs an incorrect cast, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors, which triggers a stack-based buffer overflow. - CVE-2014-9380 (denial of service) The dissector_cvs function in dissectors/ec_cvs.c allows remote attackers to cause a denial of service (out-of-bounds read) via a packet containing only a CVS_LOGIN signature. - CVE-2014-9381 (denial of service) Integer signedness error in the dissector_cvs function in dissectors/ec_cvs.c allows remote attackers to cause a denial of service (crash) via a crafted password, which triggers a large memory allocation. Impact ====== A remote attacker is able to send specially crafted packets to perform arbitrary code execution, arbitrary memory write or denial of service via various vectors. References ========== https://www.obrela.com/home/security-labs/advisories/osi-advisory-osi-1402/ https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6395 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6396 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9376 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9377 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9378 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9379 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9380 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9381 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9395 https://bugs.archlinux.org/task/44174

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[arch-security] [ASA-201503-11] flashplugin: multiple issues
by Remi Gacogne 16 Mar '15

16 Mar '15

Arch Linux Security Advisory ASA-201503-11 ========================================== Severity: Critical Date : 2015-03-16 CVE-ID : CVE-2015-0332 CVE-2015-0333 CVE-2015-0334 CVE-2015-0335 CVE-2015-0336 CVE-2015-0337 CVE-2015-0338 CVE-2015-0339 CVE-2015-0340 CVE-2015-0341 CVE-2015-0342 Package : flashplugin Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package flashplugin before version 11.2.202.451-1 is vulnerable to multiple issues including remote code execution, cross-domain policy bypass and file upload restriction bypass. Resolution ========== Upgrade to 11.2.202.451-1. # pacman -Syu "flashplugin>=11.2.202.451-1" The problem has been fixed upstream in version 11.2.202.451. Workaround ========== None. Description =========== - CVE-2015-0332, CVE-2015-0333, CVE-2015-0335, CVE-2015-0339: Memory corruption vulnerabilities leading to code execution. -CVE-2015-0334, CVE-2015-0336: Type confusion vulnerabilities leading to code execution. - CVE-2015-0337 : Vulnerability leading to a cross-domain policy bypass. - CVE-2015-0338: Integer overflow vulnerability leading to code execution. - CVE-2015-0340: Vulnerability leading to a file upload restriction bypass. - CVE-2015-0341, CVE-2015-0342: Use-after-free vulnerabilities leading to code execution. Impact ====== A remote attacker can execute arbitrary code via a carefully crafted flash file. References ========== https://helpx.adobe.com/security/products/flash-player/apsb15-05.html https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0332 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0333 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0334 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0335 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0336 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0337 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0338 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0339 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0340 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0341 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-0342

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[arch-security] [ASA-201503-10] librsync: checksum collision
by Levente Polyak 16 Mar '15

16 Mar '15

Arch Linux Security Advisory ASA-201503-10 ========================================== Severity: Medium Date : 2015-03-16 CVE-ID : CVE-2014-8242 Package : librsync Type : checksum collision Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package librsync before version 1.0.0-1 is vulnerable to checksum collision leading to possible file modification or corruption via a birthday attack. Resolution ========== Upgrade to 1.0.0-1. # pacman -Syu "librsync>=1.0.0-1" The problem has been fixed upstream in version 1.0.0. Workaround ========== None. Description =========== librsync previously used a truncated MD4 "strong" check sum to match blocks. However, MD4 is not cryptographically strong. It's possible that an attacker who can control the contents of one part of a file could use it to control other regions of the file, if it's transferred using librsync/rdiff. For example this might occur in a database, mailbox, or VM image containing some attacker-controlled data. To mitigate this issue, signatures will by default be computed with a 256-bit BLAKE2 hash. Old versions of librsync will complain about a bad magic number when given these signature files. Impact ====== An attacker is able to take advantage of the weak checksum calculation by using a birthday attack in order to corrupt or modify files that are transfered. References ========== http://www.openwall.com/lists/oss-security/2014/07/28/1 https://access.redhat.com/security/cve/CVE-2014-8242 https://github.com/librsync/librsync/issues/5 https://bugs.archlinux.org/task/44175

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[arch-security] [ASA-201503-9] unzip: arbitrary code execution
by Levente Polyak 15 Mar '15

15 Mar '15

Arch Linux Security Advisory ASA-201503-9 ========================================= Severity: High Date : 2015-03-15 CVE-ID : CVE-2014-9636 Package : unzip Type : arbitrary code execution Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package unzip before version 6.0-10 is vulnerable to heap buffer overflow leading to denial of service or possibly arbitrary code execution. Resolution ========== Upgrade to 6.0-10. # pacman -Syu "unzip>=6.0-10" The problems have not been fixed upstream but patches were added. Workaround ========== None. Description =========== A buffer overflow (out-of-bounds read or write) in test_compr_eb() in extract.c was found in the way unzip handled an extra field with an uncompressed size smaller than the compressed field size in a zip archive that advertises STORED method compression. A specially crafted Zip archive could cause unzip to crash or, possibly, execute arbitrary code. Impact ====== An attacker is able to execute arbitrary code or cause a denial of service through a specially crafted zip file. References ========== http://www.info-zip.org/phpBB3/viewtopic.php?f=7&t=450 https://access.redhat.com/security/cve/CVE-2014-9636 https://bugs.archlinux.org/task/44171

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[arch-security] [ASA-201503-8] e2fsprogs: arbitrary code execution
by Levente Polyak 12 Mar '15

12 Mar '15

Arch Linux Security Advisory ASA-201503-8 ========================================= Severity: Medium Date : 2015-03-12 CVE-ID : CVE-2015-1572 Package : e2fsprogs Type : arbitrary code execution Remote : No Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package e2fsprogs before version 1.42.12-2 is vulnerable to heap buffer overflow leading to arbitrary code execution. Resolution ========== Upgrade to 1.42.12-2. # pacman -Syu "e2fsprogs>=1.42.12-2" The problem has been fixed upstream but no release is available yet. Workaround ========== None. Description =========== If corrupted file system didn't trip over some corruption check, and then the file system was modified via tune2fs or debugfs, such that the superblock was marked dirty and then written out via the closefs() path, it's possible that the buffer overrun could be triggered when the file system is closed. This issue can lead to arbitrary code execution if a malicious device is plugged in and the mounting process chooses to run fsck (or other application using the ext2fs library) on the device's malicious filesystem. Impact ====== A local attacker is able to execute arbitrary code with a plugged in malicious device by causing a crafted block group descriptor to be marked as dirty and then accessed by an application using the ext2fs library like fsck. References ========== https://git.kernel.org/cgit/fs/ext2/e2fsprogs.git/commit/?id=49d0fe https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1572 https://bugs.archlinux.org/task/44015

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[arch-security] [ASA-201503-7] python2-django python-django - cross site scripting
by Christian Rebischke 11 Mar '15

11 Mar '15

Arch Linux Security Advisory ASA-201503-7 ========================================= Severity: Medium Date : 2015-03-11 CVE-ID : CVE-2015-2241 Package : python2-django python-django Type : Cross-Site-Scripting Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The packages python2-django and python-django before version 1.7.6-1 are vulnerable to cross-site-scripting. Resolution ========== Upgrade to 1.7.6-1. # pacman -Syu "python2-django>=1.7.6.-1" # pacman -Syu "python-django>=1.7.6-1" Workaround ========== None. Description =========== XSS attack via properties in ModelAdmin.readonly_fields Impact ====== A remote attacker is able to change content or to craft a specific phishing website. References ========== https://www.djangoproject.com/weblog/2015/mar/09/security-releases/ https://security-tracker.debian.org/tracker/CVE-2015-2241 https://bugs.archlinux.org/task/44122

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[arch-security] [ASA-201503-6] mutt: denial of service
by Levente Polyak 09 Mar '15

09 Mar '15

Arch Linux Security Advisory ASA-201503-6 ========================================= Severity: Medium Date : 2015-03-09 CVE-ID : CVE-2014-9116 Package : mutt Type : denial of service Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package mutt before version 1.5.23-2 is vulnerable to denial of service. Resolution ========== Upgrade to 1.5.23-2. # pacman -Syu "mutt>=1.5.23-2" The problem has been fixed upstream but no release is available yet. Workaround ========== None. Description =========== The write_one_header function does not properly handle newline characters at the beginning of a header, which allows remote attackers to cause a denial of service (crash) via a header with an empty body, which triggers a heap-based buffer overflow in the mutt_substrdup function. Impact ====== A remote attacker is able to send mails with specially crafted headers that leads to a crash resulting in denial of service. References ========== http://seclists.org/oss-sec/2014/q4/835 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9116 http://dev.mutt.org/trac/ticket/3716 https://bugs.archlinux.org/task/44110

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[arch-security] Fw: Django security releases and advisory issued (1.7.6 and 1.8b2)
by Markus Holtermann 09 Mar '15

09 Mar '15

Today the Django team issued multiple releases -- Django 1.7.6 and 1.8b2 -- as part of our security process. These releases address a publicly reported security issue, and we encourage all users to upgrade as soon as possible. More details can be found on our blog: https://www.djangoproject.com/weblog/2015/mar/09/security-releases/ As a reminder, we ask that potential security issues be reported via private email to security(a)djangoproject.com, and not via Django's Trac instance or the django-developers list. Please see https://www.djangoproject.com/security for further information.

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