SUSE-SU-2016:2145-1: moderate: Security update for dosfstools

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

   SUSE Security Update: Security update for dosfstools
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:2145-1
Rating:             moderate
References:         #912607 #980364 #980377 
Cross-References:   CVE-2015-8872 CVE-2016-4804
Affected Products:
                    SUSE Linux Enterprise Server 12-SP1
                    SUSE Linux Enterprise Desktop 12-SP1
______________________________________________________________________________

   An update that solves two vulnerabilities and has one
   errata is now available.

Description:

   dosfstools was updated to fix two security issues.

   These security issues were fixed:
   - CVE-2015-8872: The set_fat function in fat.c in dosfstools might have
     allowed attackers to corrupt a FAT12 filesystem or cause a denial of
     service (invalid memory read and crash) by writing an odd number of
     clusters to the third to last entry on a FAT12 filesystem, which
     triggers an "off-by-two error (bsc#980364).
   - CVE-2016-4804: The read_boot function in boot.c in dosfstools allowed
     attackers to cause a denial of service (crash) via a crafted filesystem,
     which triggers a heap-based buffer overflow in the (1) read_fat function
     or an out-of-bounds heap read in (2) get_fat function (bsc#980377).

   This non-security issue was fixed:
   - bsc#912607: Attempt to rename root dir in fsck due to uninitialized
     fields.


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 Server 12-SP1:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-1263=1

   - SUSE Linux Enterprise Desktop 12-SP1:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-1263=1

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


Package List:

   - SUSE Linux Enterprise Server 12-SP1 (ppc64le s390x x86_64):

      dosfstools-3.0.26-6.5
      dosfstools-debuginfo-3.0.26-6.5
      dosfstools-debugsource-3.0.26-6.5

   - SUSE Linux Enterprise Desktop 12-SP1 (x86_64):

      dosfstools-3.0.26-6.5
      dosfstools-debuginfo-3.0.26-6.5
      dosfstools-debugsource-3.0.26-6.5


References:

   https://www.suse.com/security/cve/CVE-2015-8872.html
   https://www.suse.com/security/cve/CVE-2016-4804.html
   https://bugzilla.suse.com/912607
   https://bugzilla.suse.com/980364
   https://bugzilla.suse.com/980377