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Vulnerability record · CVE-2018-18585 · published 23 October 2018

CVE-2018-18585: Kyzer libmspack null pointer dereference vulnerability

Kyzer · Libmspack

chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as its first or second character (such as the "/\0" name).

4.3 CVSS 3.1 Medium EPSS 3.1% · top 12.8% CWE-476 · NULL pointer dereference
4.3CVSS 3.1 base score, v2 4.3
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
20References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as its first or second character (such as the "/\0" name).

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected products

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

References

LinkTags
https://access.redhat.com/errata/RHSA-2019:2049 Third Party Advisory
https://bugs.debian.org/911637 Issue TrackingMailing ListThird Party Advisory
https://github.com/kyz/libmspack/commit/8759da8db6ec9e866cb8eb143313f397f925bb4f ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201903-20 Third Party Advisory
https://usn.ubuntu.com/3814-1/ Third Party Advisory
https://usn.ubuntu.com/3814-2/ Third Party Advisory
https://usn.ubuntu.com/3814-3/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2018/10/22/1 Mailing ListPatchThird Party Advisory
https://www.starwindsoftware.com/security/sw-20181213-0002/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2049 Third Party Advisory
https://bugs.debian.org/911637 Issue TrackingMailing ListThird Party Advisory
https://github.com/kyz/libmspack/commit/8759da8db6ec9e866cb8eb143313f397f925bb4f ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201903-20 Third Party Advisory
https://usn.ubuntu.com/3814-1/ Third Party Advisory
https://usn.ubuntu.com/3814-2/ Third Party Advisory
https://usn.ubuntu.com/3814-3/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2018/10/22/1 Mailing ListPatchThird Party Advisory
https://www.starwindsoftware.com/security/sw-20181213-0002/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-18585), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.