Issued:
2017-08-02
Updated:
2017-08-02

RHSA-2017:2412 - Important: kernel security and bug fix update

Synopsis

Important: kernel security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle 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.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lacked certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly cause other unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c. (CVE-2017-7895, Important)

Red Hat would like to thank Ari Kauppi for reporting this issue.

Bug Fix(es):

  • When upgrading to kernel with the fix for stack guard flaw, a crash could occur in Java Virtual Machine (JVM) environments, which attempted to implement their own stack guard page. With this update, the underlying source code has been fixed to consider the PROT_NONE mapping as a part of the stack, and the crash in JVM no longer occurs under the described circumstances. (BZ#1467938)

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.

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support5x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support5i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)5s390x

Updated Packages

  • kernel-headers-2.6.18-422.el5.x86_64.rpm
  • kernel-2.6.18-422.el5.s390x.rpm
  • kernel-doc-2.6.18-422.el5.noarch.rpm
  • kernel-xen-devel-2.6.18-422.el5.i686.rpm
  • kernel-kdump-debuginfo-2.6.18-422.el5.s390x.rpm
  • kernel-2.6.18-422.el5.i686.rpm
  • kernel-debug-devel-2.6.18-422.el5.x86_64.rpm
  • kernel-devel-2.6.18-422.el5.i686.rpm
  • kernel-debug-debuginfo-2.6.18-422.el5.s390x.rpm
  • kernel-devel-2.6.18-422.el5.s390x.rpm
  • kernel-headers-2.6.18-422.el5.s390x.rpm
  • kernel-xen-debuginfo-2.6.18-422.el5.x86_64.rpm
  • kernel-devel-2.6.18-422.el5.x86_64.rpm
  • kernel-debug-2.6.18-422.el5.i686.rpm
  • kernel-PAE-devel-2.6.18-422.el5.i686.rpm
  • kernel-debuginfo-2.6.18-422.el5.s390x.rpm
  • kernel-2.6.18-422.el5.x86_64.rpm
  • kernel-headers-2.6.18-422.el5.i386.rpm
  • kernel-xen-2.6.18-422.el5.x86_64.rpm
  • kernel-debuginfo-common-2.6.18-422.el5.i686.rpm
  • kernel-xen-debuginfo-2.6.18-422.el5.i686.rpm
  • kernel-kdump-devel-2.6.18-422.el5.s390x.rpm
  • kernel-xen-devel-2.6.18-422.el5.x86_64.rpm
  • kernel-debuginfo-common-2.6.18-422.el5.x86_64.rpm
  • kernel-debug-devel-2.6.18-422.el5.i686.rpm
  • kernel-debug-devel-2.6.18-422.el5.s390x.rpm
  • kernel-PAE-debuginfo-2.6.18-422.el5.i686.rpm
  • kernel-debug-debuginfo-2.6.18-422.el5.i686.rpm
  • kernel-PAE-2.6.18-422.el5.i686.rpm
  • kernel-debuginfo-2.6.18-422.el5.i686.rpm
  • kernel-kdump-2.6.18-422.el5.s390x.rpm
  • kernel-debuginfo-common-2.6.18-422.el5.s390x.rpm
  • kernel-2.6.18-422.el5.src.rpm
  • kernel-debug-debuginfo-2.6.18-422.el5.x86_64.rpm
  • kernel-debug-2.6.18-422.el5.s390x.rpm
  • kernel-debuginfo-2.6.18-422.el5.x86_64.rpm
  • kernel-xen-2.6.18-422.el5.i686.rpm
  • kernel-debug-2.6.18-422.el5.x86_64.rpm

Fixes

CVEs

References

Additional information