SUSE-SU-2015:1490-1: important: Live patch for the Linux Kernel

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Live patch for the Linux Kernel
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Announcement ID:    SUSE-SU-2015:1490-1
Rating:             important
References:         #939044 #939270 #939273 #939276 
Cross-References:   CVE-2015-1805 CVE-2015-4700 CVE-2015-5364
                    CVE-2015-5366
Affected Products:
                    SUSE Linux Enterprise Live Patching 12
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   An update that fixes four vulnerabilities is now available.

Description:


   This update contains a kernel live patch for the 3.12.43-52.6 SUSE Linux
   Enterprise Server 12 Kernel, fixing following security issues.

   - CVE-2015-5364/CVE-2015-5366: Two denial of service attacks via a flood
     of UDP packets with invalid checksums were fixed that could be used by
      remote attackers to delay execution. (bsc#939276)

   - CVE-2015-1805: The (1) pipe_read and (2) pipe_write implementations in
     fs/pipe.c in the Linux kernel did not properly consider the side effects
     of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls,
      which allowed local users to cause a denial of service (system crash)
     or possibly gain privileges via a crafted application, aka an "I/O
      vector array overrun." (bsc#939270)

   - CVE-2015-4700: A BPF Jit optimization flaw could allow local users to
     panic the kernel. (bsc#939273)


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Live Patching 12:

      zypper in -t patch SUSE-SLE-Live-Patching-12-2015-488=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Live Patching 12 (x86_64):

      kgraft-patch-3_12_43-52_6-default-2-6.1
      kgraft-patch-3_12_43-52_6-xen-2-6.1


References:

   https://www.suse.com/security/cve/CVE-2015-1805.html
   https://www.suse.com/security/cve/CVE-2015-4700.html
   https://www.suse.com/security/cve/CVE-2015-5364.html
   https://www.suse.com/security/cve/CVE-2015-5366.html
   https://bugzilla.suse.com/939044
   https://bugzilla.suse.com/939270
   https://bugzilla.suse.com/939273
   https://bugzilla.suse.com/939276