drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in RT-Preempt-Realtime-Patch
Name: |
Mehrere Probleme in RT-Preempt-Realtime-Patch |
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ID: |
RHSA-2017:1298-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Fr, 26. Mai 2017, 06:59 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2016-7910
https://access.redhat.com/security/cve/CVE-2016-10208
https://access.redhat.com/security/cve/CVE-2016-8646
https://access.redhat.com/security/cve/CVE-2017-7308 |
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Applikationen: |
RT-Preempt-Realtime-Patch |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2017:1298-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:1298 Issue date: 2017-05-25 CVE Names: CVE-2016-10208 CVE-2016-7910 CVE-2016-8646 CVE-2017-7308 =====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
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 Realtime (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2017-7308, Important)
* Mounting a crafted EXT4 image read-only leads to an attacker controlled memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate)
* A flaw was found in the Linux kernel's implementation of seq_file where a local attacker could manipulate memory in the put() function pointer. This could lead to memory corruption and possible privileged escalation. (CVE-2016-7910, Moderate)
* A vulnerability was found in the Linux kernel. An unprivileged local user could trigger oops in shash_async_export() by attempting to force the in-kernel hashing algorithms into decrypting an empty data set. (CVE-2016-8646, Moderate)
Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for reporting CVE-2016-8646.
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-514.21.1 source tree, which provides a number of bug fixes over the previous version. (BZ#1440803)
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/):
1388821 - CVE-2016-8646 kernel: Oops in shash_async_export() 1395190 - CVE-2016-10208 kernel: EXT4 memory corruption / SLAB out-of-bounds read 1399727 - CVE-2016-7910 kernel: Use after free in seq file 1437404 - CVE-2017-7308 kernel: net/packet: overflow in check for priv area size 1440803 - kernel-rt: update to the RHEL7.3.z batch#5 source tree [rhel-7.3.z]
6. Package List:
Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source: kernel-rt-3.10.0-514.21.1.rt56.438.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-514.21.1.rt56.438.el7.noarch.rpm
x86_64: kernel-rt-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-kvm-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source: kernel-rt-3.10.0-514.21.1.rt56.438.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-514.21.1.rt56.438.el7.noarch.rpm
x86_64: kernel-rt-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-514.21.1.rt56.438.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-2016-10208 https://access.redhat.com/security/cve/CVE-2016-7910 https://access.redhat.com/security/cve/CVE-2016-8646 https://access.redhat.com/security/cve/CVE-2017-7308 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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