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Vulnerability record · CVE-2017-11423 · published 18 July 2017

CVE-2017-11423: Libmspack project libmspack out-of-bounds read vulnerability

LLibmspack Project · Libmspack

The cabd_read_string function in mspack/cabd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2 and other products, allows remote attackers to cause a denial of service (stack-based buffer over-read and application crash) via a crafted CAB file.

5.5 CVSS 3.0 Medium EPSS 2.1% · top 19.4% CWE-125 · Out-of-bounds read
5.5CVSS 3.0 base score, v2 4.3
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

The cabd_read_string function in mspack/cabd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2 and other products, allows remote attackers to cause a denial of service (stack-based buffer over-read and application crash) via a crafted CAB file.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3946
https://bugzilla.clamav.net/show_bug.cgi?id=11873 Permissions Required
https://github.com/hackerlib/hackerlib-vul/tree/master/clamav-vul Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html
https://security.gentoo.org/glsa/201804-16
http://www.debian.org/security/2017/dsa-3946
https://bugzilla.clamav.net/show_bug.cgi?id=11873 Permissions Required
https://github.com/hackerlib/hackerlib-vul/tree/master/clamav-vul Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html
https://security.gentoo.org/glsa/201804-16

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2017-6419Libmspack project libmspack memory buffer overflow vulnerabilitymspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and a…EPSS 2.0%6.8CVE-2015-4472Libmspack project libmspack vulnerabilityOff-by-one error in the READ_ENCINT macro in chmd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (application crash) …EPSS 1.6%6.5CVE-2018-18584Cabextract project cabextract out-of-bounds write vulnerabilityIn mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum bloc…EPSS 3.1%5.0CVE-2014-9556Libmspack project libmspack vulnerabilityInteger overflow in the qtmd_decompress function in libmspack 0.4 allows remote attackers to cause a denial of service (hang) via a crafted CAB file,…EPSS 2.8%4.3CVE-2015-4471Libmspack project libmspack vulnerabilityOff-by-one error in the lzxd_decompress function in lzxd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (buffer under…EPSS 2.3%4.3CVE-2015-4469Libmspack project libmspack memory buffer overflow vulnerabilityThe chmd_read_headers function in chmd.c in libmspack before 0.5 does not validate name lengths, which allows remote attackers to cause a denial of s…EPSS 1.4%4.3CVE-2015-4470Libmspack project libmspack vulnerabilityOff-by-one error in the inflate function in mszipd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (buffer over-read a…EPSS 1.4%4.3CVE-2015-4468Libmspack project libmspack vulnerabilityMultiple integer overflows in the search_chunk function in chmd.c in libmspack before 0.5 allow remote attackers to cause a denial of service (buffer…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2017-11423), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.