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Red Hat 7 RHSA-2015:2595-01 Moderate: libpng12 Buffer Overflow

Updated libpng12 packages that fix three security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: libpng12 security update Advisory ID: RHSA-2015:2595-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2015:2595.html Issue date: 2015-12-09 CVE Names: CVE-2015-7981 CVE-2015-8126 CVE-2015-8472 ==================================================================== 1. Summary: Updated libpng12 packages that fix three security issues are now available for Red Hat Enterprise Linux 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 Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The libpng12 packages contain a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files. It was discovered that the png_get_PLTE() and png_set_PLTE() functions of libpng did not correctly calculate the maximum palette sizes for bit depths of less than 8. In case anapplication tried to use these functions in combination with properly calculated palette sizes, this could lead to a buffer overflow or out-of-bounds reads. An attacker could exploit this to cause a crash or potentially execute arbitrary code by tricking an unsuspecting user into processing a specially crafted PNG image. However, the exact impact is dependent on the application using the library. (CVE-2015-8126, CVE-2015-8472) An array-indexing error was discovered in the png_convert_to_rfc1123() function of libpng. An attacker could possibly use this flaw to cause an out-of-bounds read by tricking an unsuspecting user into processing a specially crafted PNG image. (CVE-2015-7981) All libpng12 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/): 1276416 - CVE-2015-7981 libpng: Out-of-bounds read in png_convert_to_rfc1123 1281756 - CVE-2015-8126 CVE-2015-8472 libpng: Buffer overflow vulnerabilities in png_get_PLTE/png_set_PLTE functions 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: libpng12-1.2.50-7.el7_2.src.rpm x86_64: libpng12-1.2.50-7.el7_2.i686.rpm libpng12-1.2.50-7.el7_2.x86_64.rpm libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm libpng12-devel-1.2.50-7.el7_2.i686.rpm libpng12-devel-1.2.50-7.el7_2.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libpng12-1.2.50-7.el7_2.src.rpm x86_64: libpng12-1.2.50-7.el7_2.i686.rpm libpng12-1.2.50-7.el7_2.x86_64.rpm libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm Red Hat EnterpriseLinux ComputeNode Optional (v. 7): x86_64: libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm libpng12-devel-1.2.50-7.el7_2.i686.rpm libpng12-devel-1.2.50-7.el7_2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libpng12-1.2.50-7.el7_2.src.rpm aarch64: libpng12-1.2.50-7.el7_2.aarch64.rpm libpng12-debuginfo-1.2.50-7.el7_2.aarch64.rpm ppc64: libpng12-1.2.50-7.el7_2.ppc.rpm libpng12-1.2.50-7.el7_2.ppc64.rpm libpng12-debuginfo-1.2.50-7.el7_2.ppc.rpm libpng12-debuginfo-1.2.50-7.el7_2.ppc64.rpm ppc64le: libpng12-1.2.50-7.el7_2.ppc64le.rpm libpng12-debuginfo-1.2.50-7.el7_2.ppc64le.rpm s390x: libpng12-1.2.50-7.el7_2.s390.rpm libpng12-1.2.50-7.el7_2.s390x.rpm libpng12-debuginfo-1.2.50-7.el7_2.s390.rpm libpng12-debuginfo-1.2.50-7.el7_2.s390x.rpm x86_64: libpng12-1.2.50-7.el7_2.i686.rpm libpng12-1.2.50-7.el7_2.x86_64.rpm libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): aarch64: libpng12-debuginfo-1.2.50-7.el7_2.aarch64.rpm libpng12-devel-1.2.50-7.el7_2.aarch64.rpm ppc64: libpng12-debuginfo-1.2.50-7.el7_2.ppc.rpm libpng12-debuginfo-1.2.50-7.el7_2.ppc64.rpm libpng12-devel-1.2.50-7.el7_2.ppc.rpm libpng12-devel-1.2.50-7.el7_2.ppc64.rpm ppc64le: libpng12-debuginfo-1.2.50-7.el7_2.ppc64le.rpm libpng12-devel-1.2.50-7.el7_2.ppc64le.rpm s390x: libpng12-debuginfo-1.2.50-7.el7_2.s390.rpm libpng12-debuginfo-1.2.50-7.el7_2.s390x.rpm libpng12-devel-1.2.50-7.el7_2.s390.rpm libpng12-devel-1.2.50-7.el7_2.s390x.rpm x86_64: libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm libpng12-devel-1.2.50-7.el7_2.i686.rpm libpng12-devel-1.2.50-7.el7_2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libpng12-1.2.50-7.el7_2.src.rpm x86_64: libpng12-1.2.50-7.el7_2.i686.rpm libpng12-1.2.50-7.el7_2.x86_64.rpm libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v.7): x86_64: libpng12-debuginfo-1.2.50-7.el7_2.i686.rpm libpng12-debuginfo-1.2.50-7.el7_2.x86_64.rpm libpng12-devel-1.2.50-7.el7_2.i686.rpm libpng12-devel-1.2.50-7.el7_2.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-2015-7981 https://access.redhat.com/security/cve/CVE-2015-8126 https://access.redhat.com/security/cve/CVE-2015-8472 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD4DBQFWaEOWXlSAg2UNWIIRArqQAJiXHpRTjePlByUwb2yeLtnA6ZHDAJ483rVP N/LWwsGEwId3XWZYVPOUSQ==s2GT -----END PGP SIGNATURE----- -- Enterprise-watch-list mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Recent libpng12 upgrades improve defense measures for Red Hat Enterprise Linux, mitigating code execution threats and system vulnerabilities.. libpng12 update, Red Hat security patch, moderate security risks. . LinuxSecurity.com Team

Dec 09, 2015 Red Hat