drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Linux
Name: |
Zwei Probleme in Linux |
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ID: |
RHSA-2016:2128-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Mo, 31. Oktober 2016, 17:52 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2016-4470
https://access.redhat.com/security/vulnerabilities/2706661
https://access.redhat.com/security/cve/CVE-2016-5195 |
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Applikationen: |
Linux |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security and enhancement update Advisory ID: RHSA-2016:2128-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2128.html Issue date: 2016-10-31 CVE Names: CVE-2016-4470 CVE-2016-5195 =====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 6.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux HPC Node EUS (v. 6.6) - noarch, x86_64 Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, ppc64, s390x, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* A flaw was found in the Linux kernel's keyring handling code: the key_reject_and_link() function could be forced to free an arbitrary memory block. An attacker could use this flaw to trigger a use-after-free condition on the system, potentially allowing for privilege escalation. (CVE-2016-4470, Important)
* A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged, local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system. (CVE-2016-5195, Important)
Red Hat would like to thank Phil Oester for reporting CVE-2016-5195. The CVE-2016-4470 issue was discovered by David Howells (Red Hat).
Enhancement(s):
* This update fixes a tape write problem by fixing the use of the sas_is_tlr_enabled API in the mpt3sas driver. The driver now checks whether Transport Layer Recovery (TLR) is enabled before enabling the MPI2_SCSIIO_CONTROL_TLR_ON flag. (BZ#1372352)
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1341716 - CVE-2016-4470 kernel: Uninitialized variable in request_key handling causes kernel crash in error handling path 1384344 - CVE-2016-5195 kernel: mm: privilege escalation via MAP_PRIVATE COW breakage
6. Package List:
Red Hat Enterprise Linux HPC Node EUS (v. 6.6):
Source: kernel-2.6.32-504.54.1.el6.src.rpm
noarch: kernel-abi-whitelists-2.6.32-504.54.1.el6.noarch.rpm kernel-doc-2.6.32-504.54.1.el6.noarch.rpm kernel-firmware-2.6.32-504.54.1.el6.noarch.rpm
x86_64: kernel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.54.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm kernel-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-headers-2.6.32-504.54.1.el6.x86_64.rpm perf-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6):
x86_64: kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.6):
Source: kernel-2.6.32-504.54.1.el6.src.rpm
i386: kernel-2.6.32-504.54.1.el6.i686.rpm kernel-debug-2.6.32-504.54.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm kernel-devel-2.6.32-504.54.1.el6.i686.rpm kernel-headers-2.6.32-504.54.1.el6.i686.rpm perf-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-504.54.1.el6.noarch.rpm kernel-doc-2.6.32-504.54.1.el6.noarch.rpm kernel-firmware-2.6.32-504.54.1.el6.noarch.rpm
ppc64: kernel-2.6.32-504.54.1.el6.ppc64.rpm kernel-bootwrapper-2.6.32-504.54.1.el6.ppc64.rpm kernel-debug-2.6.32-504.54.1.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debug-devel-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-504.54.1.el6.ppc64.rpm kernel-devel-2.6.32-504.54.1.el6.ppc64.rpm kernel-headers-2.6.32-504.54.1.el6.ppc64.rpm perf-2.6.32-504.54.1.el6.ppc64.rpm perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm
s390x: kernel-2.6.32-504.54.1.el6.s390x.rpm kernel-debug-2.6.32-504.54.1.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debug-devel-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-504.54.1.el6.s390x.rpm kernel-devel-2.6.32-504.54.1.el6.s390x.rpm kernel-headers-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-devel-2.6.32-504.54.1.el6.s390x.rpm perf-2.6.32-504.54.1.el6.s390x.rpm perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm
x86_64: kernel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.54.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm kernel-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-headers-2.6.32-504.54.1.el6.x86_64.rpm perf-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.6):
i386: kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm
ppc64: kernel-debug-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-504.54.1.el6.ppc64.rpm perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm python-perf-2.6.32-504.54.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm
s390x: kernel-debug-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-504.54.1.el6.s390x.rpm perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm python-perf-2.6.32-504.54.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm
x86_64: kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.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-2016-4470 https://access.redhat.com/security/cve/CVE-2016-5195 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/2706661
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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