Security update for libXfont

Announcement ID: SUSE-SU-2015:0702-1
Rating: important
References:
Cross-References:
CVSS scores:
Affected Products:
  • SUSE Linux Enterprise Desktop 12
  • SUSE Linux Enterprise Server 12
  • SUSE Linux Enterprise Server for SAP Applications 12
  • SUSE Linux Enterprise Software Development Kit 12

An update that solves three vulnerabilities can now be installed.

Description:

LibXFont was updated to fix security problems.

Following security issues were fixed: - CVE-2015-1802: The bdf parser reads a count for the number of properties defined in a font from the font file, and allocates arrays with entries for each property based on that count. It never checked to see if that count was negative, or large enough to overflow when multiplied by the size of the structures being allocated, and could thus allocate the wrong buffer size, leading to out of bounds writes.

  • CVE-2015-1803: If the bdf parser failed to parse the data for the bitmap for any character, it would proceed with an invalid pointer to the bitmap data and later crash when trying to read the bitmap from that pointer.

  • CVE-2015-1804: The bdf parser read metrics values as 32-bit integers, but stored them into 16-bit integers. Overflows could occur in various operations leading to out-of-bounds memory access.

Special Instructions and Notes:

  • Please log out and log in again after installing this update.

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 Desktop 12
    zypper in -t patch SUSE-SLE-DESKTOP-12-2015-161=1
  • SUSE Linux Enterprise Software Development Kit 12
    zypper in -t patch SUSE-SLE-SDK-12-2015-161=1
  • SUSE Linux Enterprise Server 12
    zypper in -t patch SUSE-SLE-SERVER-12-2015-161=1
  • SUSE Linux Enterprise Server for SAP Applications 12
    zypper in -t patch SUSE-SLE-SERVER-12-2015-161=1

Package List:

  • SUSE Linux Enterprise Desktop 12 (x86_64)
    • libXfont-debugsource-1.4.7-4.1
    • libXfont1-debuginfo-1.4.7-4.1
    • libXfont1-1.4.7-4.1
  • SUSE Linux Enterprise Software Development Kit 12 (ppc64le s390x x86_64)
    • libXfont-debugsource-1.4.7-4.1
    • libXfont-devel-1.4.7-4.1
  • SUSE Linux Enterprise Server 12 (ppc64le s390x x86_64)
    • libXfont-debugsource-1.4.7-4.1
    • libXfont1-debuginfo-1.4.7-4.1
    • libXfont1-1.4.7-4.1
  • SUSE Linux Enterprise Server for SAP Applications 12 (x86_64)
    • libXfont-debugsource-1.4.7-4.1
    • libXfont1-debuginfo-1.4.7-4.1
    • libXfont1-1.4.7-4.1

References: