The package unzip before version 6.0-11 is vulnerable to arbitrary code execution and denial of service. . Arch Linux Security Advisory ASA-201511-1 ======================================== Severity: High Date : 2015-11-03 CVE-ID : CVE-2015-7696 CVE-2015-7697 Package : unzip Type : multiple issues Remote : Yes Link : https://wiki.archlinux.org/title/CVE Summary ====== The package unzip before version 6.0-11 is vulnerable to arbitrary code execution and denial of service. Resolution ========= Upgrade to 6.0-11. # pacman -Syu "unzip> =6.0-11" The problems have been fixed by applying proper patches. Workaround ========= None. Description ========== - CVE-2015-7696 (arbitrary code execution) A heap buffer overflow triggered by unzipping a file with password that can lead to arbitrary code execution. - CVE-2015-7697 (denial of service) A denial of service with a file that never finishes unzipping. Impact ===== A remote attacker is able to create a specially crafted zip archive with a password that is leading to arbitrary code execution or denial of service via an infinite loop while unzipping. References ========= https://access.redhat.com/security/cve/CVE-2015-7696 https://access.redhat.com/security/cve/CVE-2015-7697 https://seclists.org/oss-sec/2015/q3/512 https://bugs.archlinux.org/task/46955 . The Fedora Security Advisory FSA-202212-2 highlights critical vulnerabilities in the tar package that could lead to unauthorized access and denial of service.. Arch Linux Advisory, Unzip Issues, High Severity Problems. . LinuxSecurity.com Team
Updated unzip packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security [More...]. ==================================================================== Red Hat Security Advisory Synopsis: Moderate: unzip security update Advisory ID: RHSA-2015:0700-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2015:0700.html Issue date: 2015-03-18 CVE Names: CVE-2014-8139 CVE-2014-8140 CVE-2014-8141 CVE-2014-9636 ==================================================================== 1. Summary: Updated unzip packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: The unzip utility is used to list, test, or extract files from a zip archive. A buffer overflow was found in the way unzip uncompressed certain extra fields of a file. A specially crafted Zip archive could cause unzip to crash or, possibly, execute arbitrary code when the archive was tested with unzip's '-t' option. (CVE-2014-9636) A buffer overflow flaw was found in the way unzip computed the CRC32 checksum of certain extrafields of a file. A specially crafted Zip archive could cause unzip to crash when the archive was tested with unzip's '-t' option. (CVE-2014-8139) An integer underflow flaw, leading to a buffer overflow, was found in the way unzip uncompressed certain extra fields of a file. A specially crafted Zip archive could cause unzip to crash when the archive was tested with unzip's '-t' option. (CVE-2014-8140) A buffer overflow flaw was found in the way unzip handled Zip64 files. A specially crafted Zip archive could possibly cause unzip to crash when the archive was uncompressed. (CVE-2014-8141) Red Hat would like to thank oCERT for reporting the CVE-2014-8139, CVE-2014-8140, and CVE-2014-8141 issues. oCERT acknowledges Michele Spagnuolo of the Google Security Team as the original reporter of these issues. All unzip users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1174844 - CVE-2014-8139 unzip: CRC32 verification heap-based buffer overread (oCERT-2014-011) 1174851 - CVE-2014-8140 unzip: out-of-bounds write issue in test_compr_eb() (oCERT-2014-011) 1174856 - CVE-2014-8141 unzip: getZip64Data() out-of-bounds read issues (oCERT-2014-011) 1184985 - CVE-2014-9636 unzip: out-of-bounds read/write in test_compr_eb() in extract.c 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: unzip-6.0-2.el6_6.src.rpm i386: unzip-6.0-2.el6_6.i686.rpm unzip-debuginfo-6.0-2.el6_6.i686.rpm x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: unzip-6.0-2.el6_6.src.rpm x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm Red Hat Enterprise Linux Server (v.6): Source: unzip-6.0-2.el6_6.src.rpm i386: unzip-6.0-2.el6_6.i686.rpm unzip-debuginfo-6.0-2.el6_6.i686.rpm ppc64: unzip-6.0-2.el6_6.ppc64.rpm unzip-debuginfo-6.0-2.el6_6.ppc64.rpm s390x: unzip-6.0-2.el6_6.s390x.rpm unzip-debuginfo-6.0-2.el6_6.s390x.rpm x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: unzip-6.0-2.el6_6.src.rpm i386: unzip-6.0-2.el6_6.i686.rpm unzip-debuginfo-6.0-2.el6_6.i686.rpm x86_64: unzip-6.0-2.el6_6.x86_64.rpm unzip-debuginfo-6.0-2.el6_6.x86_64.rpm Red Hat Enterprise Linux Client (v. 7): Source: unzip-6.0-15.el7.src.rpm x86_64: unzip-6.0-15.el7.x86_64.rpm unzip-debuginfo-6.0-15.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: unzip-6.0-15.el7.src.rpm x86_64: unzip-6.0-15.el7.x86_64.rpm unzip-debuginfo-6.0-15.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: unzip-6.0-15.el7.src.rpm ppc64: unzip-6.0-15.el7.ppc64.rpm unzip-debuginfo-6.0-15.el7.ppc64.rpm s390x: unzip-6.0-15.el7.s390x.rpm unzip-debuginfo-6.0-15.el7.s390x.rpm x86_64: unzip-6.0-15.el7.x86_64.rpm unzip-debuginfo-6.0-15.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: unzip-6.0-15.ael7b.src.rpm ppc64le: unzip-6.0-15.ael7b.ppc64le.rpm unzip-debuginfo-6.0-15.ael7b.ppc64le.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: unzip-6.0-15.el7.src.rpm x86_64: unzip-6.0-15.el7.x86_64.rpm unzip-debuginfo-6.0-15.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key 7. References: https://access.redhat.com/security/cve/CVE-2014-8139 https://access.redhat.com/security/cve/CVE-2014-8140 https://access.redhat.com/security/cve/CVE-2014-8141 https://access.redhat.com/security/cve/CVE-2014-9636 https://access.redhat.com/security/updates/classification#moderate 8. Contact: The Red Hat security contact is . More contact details athttps://access.redhat.com/security/team/contact Copyright 2015 Red Hat, Inc. . A significant security patch for the unzip utility resolves various vulnerabilities in Red Hat Enterprise Linux versions 6 and 7.. unzip Fix, Red Hat Advisory, Security Update, Linux Exploit. . LinuxSecurity.com Team
. =========================================================================Ubuntu Security Notice USN-2489-1 February 03, 2015 unzip vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Details: Michal Zalewski discovered that unzip incorrectly handled certain malformed zip archives. If a user or automated system were tricked into processing a specially crafted zip archive, an attacker could possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.10: unzip 6.0-12ubuntu1.2 Ubuntu 14.04 LTS: unzip 6.0-9ubuntu1.2 Ubuntu 12.04 LTS: unzip 6.0-4ubuntu2.2 Ubuntu 10.04 LTS: unzip 6.0-1ubuntu0.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-2489-1 CVE-2014-9636 Package Information: https://launchpad.net/ubuntu/+source/unzip/6.0-12ubuntu1.2 https://launchpad.net/ubuntu/+source/unzip/6.0-9ubuntu1.2 https://launchpad.net/ubuntu/+source/unzip/6.0-4ubuntu2.2 https://launchpad.net/ubuntu/+source/unzip/6.0-1ubuntu0.2 . Debian Security Notice DSN-4891-2 notifies users of a tar vulnerability permitting unauthorized access; users should update systems promptly.. unzip vulnerability, code execution threat, security patch, system update. . Severity: Critical. LinuxSecurity.com Team
These fix a security issue where a specially crafted archive mayoverwrite files (including system files anywhere on the filesystem)upon extraction by a user with sufficient permissions.. [slackware-security] unzip vulnerability patched (SSA:2003-237-01) Upgraded infozip packages are available for Slackware 9.0 and -current. These fix a security issue where a specially crafted archive may overwrite files (including system files anywhere on the filesystem) upon extraction by a user with sufficient permissions. For more information, see: unzip: directory traversal vulnerability [LWN.net] CVE -CVE-2003-0282 Here are the details from the Slackware 9.0 ChangeLog: +--------------------------+ Mon Aug 25 15:35:28 PDT 2003 patches/packages/infozip-5.50-i486-2.tgz: Fixed a bug where a specially crafted archive might try to write to ../ or ../../, etc, potentially overwriting system files if the user (such as root) has permissions to overwrite them. Thanks to jelmer for locating this problem, and Ben Laurie for providing a patch. (* Security fix *) +--------------------------+ WHERE TO FIND THE NEW PACKAGES: +-----------------------------+ Updated package for Slackware 9.0: Updated package for Slackware -current: MD5 SIGNATURES: +-------------+ Slackware 9.0 package: d262ae0564f475b39e2ccf20fe1dfc41 infozip-5.50-i386-2.tgz Slackware -current package: 8c4b4fc48e145a71e962cd7f99be8a5b infozip-5.50-i486-2.tgz INSTALLATION INSTRUCTIONS: +------------------------+ Upgrade using upgradepkg (as root): upgradepkg infozip-5.50-i386-2.tgz +-----+ Slackware Linux Security Team slackware
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