Upstream information

CVE-2017-13720 at MITRE

Description

In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 3.6 1.7
Vector AV:L/AC:L/Au:N/C:P/I:N/A:P AV:L/AC:L/Au:S/C:N/I:P/A:N
Access Vector Local Local
Access Complexity Low Low
Authentication None Single
Confidentiality Impact Partial None
Integrity Impact None Partial
Availability Impact Partial None
CVSS v3 Scores
  SUSE
Base Score 3.3
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact Low
Availability Impact None
SUSE Bugzilla entry: 1054285 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 42.2
  • libXfont >= 1.5.1-9.3.1
  • libXfont-debugsource >= 1.5.1-9.3.1
  • libXfont-devel >= 1.5.1-9.3.1
  • libXfont-devel-32bit >= 1.5.1-9.3.1
  • libXfont1 >= 1.5.1-9.3.1
  • libXfont1-32bit >= 1.5.1-9.3.1
  • libXfont1-debuginfo >= 1.5.1-9.3.1
  • libXfont1-debuginfo-32bit >= 1.5.1-9.3.1
Patchnames:
openSUSE-2017-1357

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Desktop 12 SP2
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont1 >= 1.5.1-11.3.12
  • libXfont1-debuginfo >= 1.5.1-11.3.12
SUSE Linux Enterprise Desktop 12 SP3
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont1 >= 1.5.1-11.3.12
  • libXfont1-debuginfo >= 1.5.1-11.3.12
SUSE Linux Enterprise Server 11 SP4
  • xorg-x11-libs >= 7.4-8.26.50.5.3
  • xorg-x11-libs-32bit >= 7.4-8.26.50.5.3
  • xorg-x11-libs-x86 >= 7.4-8.26.50.5.3
SUSE Linux Enterprise Server 12 SP2
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont1 >= 1.5.1-11.3.12
  • libXfont1-debuginfo >= 1.5.1-11.3.12
SUSE Linux Enterprise Server 12 SP3
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont1 >= 1.5.1-11.3.12
  • libXfont1-debuginfo >= 1.5.1-11.3.12
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont1 >= 1.5.1-11.3.12
  • libXfont1-debuginfo >= 1.5.1-11.3.12
SUSE Linux Enterprise Software Development Kit 11 SP4
  • xorg-x11-devel >= 7.4-8.26.50.5.3
  • xorg-x11-devel-32bit >= 7.4-8.26.50.5.3
  • xorg-x11-libs >= 7.4-8.26.50.5.3
SUSE Linux Enterprise Software Development Kit 12 SP2
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont-devel >= 1.5.1-11.3.12
SUSE Linux Enterprise Software Development Kit 12 SP3
  • libXfont >= 1.5.1-11.3.12
  • libXfont-debugsource >= 1.5.1-11.3.12
  • libXfont-devel >= 1.5.1-11.3.12


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 SP2 libXfont In progress
SUSE Linux Enterprise Desktop 12 SP3 libXfont In progress
SUSE Linux Enterprise SDK 12 SP2 libXfont In progress
SUSE Linux Enterprise SDK 12 SP3 libXfont In progress
SUSE Linux Enterprise Server 12 GA LTSS libXfont Affected
SUSE Linux Enterprise Server 12 SP1 LTSS libXfont Affected
SUSE Linux Enterprise Server 12 SP2 libXfont In progress
SUSE Linux Enterprise Server 12 SP2 for Raspberry PI libXfont In progress
SUSE Linux Enterprise Server 12 SP3 libXfont In progress