drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in kernel-rt
Name: |
Mehrere Probleme in kernel-rt |
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ID: |
RHSA-2018:3586-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise MRG for RHEL-6 |
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Datum: |
Di, 13. November 2018, 18:48 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2018-5391
https://access.redhat.com/security/cve/CVE-2017-18344
https://access.redhat.com/security/vulnerabilities/mutagen-astronomy
https://access.redhat.com/security/cve/CVE-2018-14634
https://access.redhat.com/security/cve/CVE-2018-10675
https://access.redhat.com/articles/3553061 |
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Applikationen: |
RT-Preempt-Realtime-Patch |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2018:3586-01 Product: Red Hat Enterprise MRG for RHEL-6 Advisory URL: https://access.redhat.com/errata/RHSA-2018:3586 Issue date: 2018-11-13 CVE Names: CVE-2017-18344 CVE-2018-5391 CVE-2018-10675 CVE-2018-14634 =====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise MRG 2.
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 MRG Realtime for RHEL 6 Server v.2 - 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):
* A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391)
* kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c (CVE-2017-18344)
* kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact (CVE-2018-10675)
* kernel: Integer overflow in Linux's create_elf_tables function (CVE-2018-14634)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391 and Qualys Research Labs for reporting CVE-2018-14634.
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-693.43.1 source tree, which provides a number of bug fixes over the previous version. (BZ#1632422)
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/):
1575065 - CVE-2018-10675 kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact 1609664 - CVE-2018-5391 kernel: IP fragments with random offsets allow a remote denial of service (FragmentSmack) 1610958 - CVE-2017-18344 kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c 1624498 - CVE-2018-14634 kernel: Integer overflow in Linux's create_elf_tables function
6. Package List:
Red Hat MRG Realtime for RHEL 6 Server v.2:
Source: kernel-rt-3.10.0-693.43.1.rt56.630.el6rt.src.rpm
noarch: kernel-rt-doc-3.10.0-693.43.1.rt56.630.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.43.1.rt56.630.el6rt.noarch.rpm
x86_64: kernel-rt-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.43.1.rt56.630.el6rt.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-2017-18344 https://access.redhat.com/security/cve/CVE-2018-5391 https://access.redhat.com/security/cve/CVE-2018-10675 https://access.redhat.com/security/cve/CVE-2018-14634 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/3553061 https://access.redhat.com/security/vulnerabilities/mutagen-astronomy
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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