CVE-2015-4467

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-06-11 · updated 2026-06-17
Weakness: CWE-189

Description

The chmd_init_decomp function in chmd.c in libmspack before 0.5 does not properly validate the reset interval, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted CHM file.

Affected products

Libmspack Project Libmspack: through 0.4-3

References

http://anonscm.debian.org/cgit/collab-maint/libmspack.git/diff/debian/patches/fix-division-by-zero.patch?id=a25bb144795e526748b57884daf365732c7e2295
http://openwall.com/lists/oss-security/2015/02/03/11
http://www.securityfocus.com/bid/72488
https://bugs.debian.org/774725
http://anonscm.debian.org/cgit/collab-maint/libmspack.git/diff/debian/patches/fix-division-by-zero.patch?id=a25bb144795e526748b57884daf365732c7e2295
http://openwall.com/lists/oss-security/2015/02/03/11
http://www.securityfocus.com/bid/72488
https://bugs.debian.org/774725

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