-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: pam security update Advisory ID: RHSA-2015:1640-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1640.html Issue date: 2015-08-18 CVE Names: CVE-2015-3238 ===================================================================== 1. Summary: An updated pam package that fixes one security issue is now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (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: Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs to handle authentication. It was discovered that the _unix_run_helper_binary() function of PAM's unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system. (CVE-2015-3238) Red Hat would like to thank Sebastien Macke of Trustwave SpiderLabs for reporting this issue. All pam users are advised to upgrade to this updated package, which contains a backported patch to correct this issue. 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/): 1228571 - CVE-2015-3238 pam: DoS/user enumeration due to blocking pipe in pam_unix module 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: pam-1.1.1-20.el6_7.1.src.rpm i386: pam-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm x86_64: pam-1.1.1-20.el6_7.1.i686.rpm pam-1.1.1-20.el6_7.1.x86_64.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): i386: pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm x86_64: pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.x86_64.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: pam-1.1.1-20.el6_7.1.src.rpm x86_64: pam-1.1.1-20.el6_7.1.i686.rpm pam-1.1.1-20.el6_7.1.x86_64.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): x86_64: pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.x86_64.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: pam-1.1.1-20.el6_7.1.src.rpm i386: pam-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm ppc64: pam-1.1.1-20.el6_7.1.ppc.rpm pam-1.1.1-20.el6_7.1.ppc64.rpm pam-debuginfo-1.1.1-20.el6_7.1.ppc.rpm pam-debuginfo-1.1.1-20.el6_7.1.ppc64.rpm pam-devel-1.1.1-20.el6_7.1.ppc.rpm pam-devel-1.1.1-20.el6_7.1.ppc64.rpm s390x: pam-1.1.1-20.el6_7.1.s390.rpm pam-1.1.1-20.el6_7.1.s390x.rpm pam-debuginfo-1.1.1-20.el6_7.1.s390.rpm pam-debuginfo-1.1.1-20.el6_7.1.s390x.rpm pam-devel-1.1.1-20.el6_7.1.s390.rpm pam-devel-1.1.1-20.el6_7.1.s390x.rpm x86_64: pam-1.1.1-20.el6_7.1.i686.rpm pam-1.1.1-20.el6_7.1.x86_64.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.x86_64.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: pam-1.1.1-20.el6_7.1.src.rpm i386: pam-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm x86_64: pam-1.1.1-20.el6_7.1.i686.rpm pam-1.1.1-20.el6_7.1.x86_64.rpm pam-debuginfo-1.1.1-20.el6_7.1.i686.rpm pam-debuginfo-1.1.1-20.el6_7.1.x86_64.rpm pam-devel-1.1.1-20.el6_7.1.i686.rpm pam-devel-1.1.1-20.el6_7.1.x86_64.rpm Red Hat Enterprise Linux Client (v. 7): Source: pam-1.1.8-12.el7_1.1.src.rpm x86_64: pam-1.1.8-12.el7_1.1.i686.rpm pam-1.1.8-12.el7_1.1.x86_64.rpm pam-debuginfo-1.1.8-12.el7_1.1.i686.rpm pam-debuginfo-1.1.8-12.el7_1.1.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: pam-debuginfo-1.1.8-12.el7_1.1.i686.rpm pam-debuginfo-1.1.8-12.el7_1.1.x86_64.rpm pam-devel-1.1.8-12.el7_1.1.i686.rpm pam-devel-1.1.8-12.el7_1.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: pam-1.1.8-12.el7_1.1.src.rpm x86_64: pam-1.1.8-12.el7_1.1.i686.rpm pam-1.1.8-12.el7_1.1.x86_64.rpm pam-debuginfo-1.1.8-12.el7_1.1.i686.rpm pam-debuginfo-1.1.8-12.el7_1.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: pam-debuginfo-1.1.8-12.el7_1.1.i686.rpm pam-debuginfo-1.1.8-12.el7_1.1.x86_64.rpm pam-devel-1.1.8-12.el7_1.1.i686.rpm pam-devel-1.1.8-12.el7_1.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: pam-1.1.8-12.el7_1.1.src.rpm ppc64: pam-1.1.8-12.el7_1.1.ppc.rpm pam-1.1.8-12.el7_1.1.ppc64.rpm pam-debuginfo-1.1.8-12.el7_1.1.ppc.rpm pam-debuginfo-1.1.8-12.el7_1.1.ppc64.rpm pam-devel-1.1.8-12.el7_1.1.ppc.rpm pam-devel-1.1.8-12.el7_1.1.ppc64.rpm s390x: pam-1.1.8-12.el7_1.1.s390.rpm pam-1.1.8-12.el7_1.1.s390x.rpm pam-debuginfo-1.1.8-12.el7_1.1.s390.rpm pam-debuginfo-1.1.8-12.el7_1.1.s390x.rpm pam-devel-1.1.8-12.el7_1.1.s390.rpm pam-devel-1.1.8-12.el7_1.1.s390x.rpm x86_64: pam-1.1.8-12.el7_1.1.i686.rpm pam-1.1.8-12.el7_1.1.x86_64.rpm pam-debuginfo-1.1.8-12.el7_1.1.i686.rpm pam-debuginfo-1.1.8-12.el7_1.1.x86_64.rpm pam-devel-1.1.8-12.el7_1.1.i686.rpm pam-devel-1.1.8-12.el7_1.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: pam-1.1.8-12.ael7b_1.1.src.rpm ppc64le: pam-1.1.8-12.ael7b_1.1.ppc64le.rpm pam-debuginfo-1.1.8-12.ael7b_1.1.ppc64le.rpm pam-devel-1.1.8-12.ael7b_1.1.ppc64le.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: pam-1.1.8-12.el7_1.1.src.rpm x86_64: pam-1.1.8-12.el7_1.1.i686.rpm pam-1.1.8-12.el7_1.1.x86_64.rpm pam-debuginfo-1.1.8-12.el7_1.1.i686.rpm pam-debuginfo-1.1.8-12.el7_1.1.x86_64.rpm pam-devel-1.1.8-12.el7_1.1.i686.rpm pam-devel-1.1.8-12.el7_1.1.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-2015-3238 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 iD4DBQFV04JBXlSAg2UNWIIRAqOzAJ9EbtvfQumSyuGIDUvsrz4LuGDaigCXf+Hq jEKopvJJZBS387fy3yznhQ== =7uik -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce