Security update for dosfstools

Announcement ID: SUSE-SU-2016:2146-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2015-8872 ( NVD ): 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2016-4804 ( NVD ): 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SLES for SAP Applications 11-SP4
  • SUSE Linux Enterprise Server 11 SP4

An update that solves two vulnerabilities can now be installed.

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).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-dosfstools-12706=1
  • SLES for SAP Applications 11-SP4
    zypper in -t patch slessp4-dosfstools-12706=1

Package List:

  • SUSE Linux Enterprise Server 11 SP4 (s390x x86_64 i586 ppc64 ia64)
    • dosfstools-3.0.26-3.1
  • SLES for SAP Applications 11-SP4 (ppc64 x86_64)
    • dosfstools-3.0.26-3.1

References: