Off-by-one Error Affecting clamav package, versions <0.100.1+dfsg-1ubuntu0.14.04.3


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.93% (84th percentile)

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  • Snyk ID SNYK-UBUNTU1404-CLAMAV-372559
  • published 28 Jul 2018
  • disclosed 28 Jul 2018

How to fix?

Upgrade Ubuntu:14.04 clamav to version 0.100.1+dfsg-1ubuntu0.14.04.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream clamav package and not the clamav package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 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 CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).