drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Preisgabe von Informationen in Linux-PAM
Name: |
Preisgabe von Informationen in Linux-PAM |
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ID: |
RHSA-2015:1640-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Mi, 19. August 2015, 02:43 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3238 |
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Applikationen: |
Linux-PAM |
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Originalnachricht |
-----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 <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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