Off-by-one Error Affecting libmspack package, versions <0:0.5-0.6.alpha.el7


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.85% (83rd percentile)

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  • Snyk IDSNYK-RHEL7-LIBMSPACK-4903480
  • published26 Jul 2021
  • disclosed6 Feb 2018

Introduced: 6 Feb 2018

CVE-2018-14682  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

Upgrade RHEL:7 libmspack to version 0:0.5-0.6.alpha.el7 or higher.
This issue was patched in RHSA-2018:3327.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libmspack package and not the libmspack package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.