What’s Vulnerable › Vulnerabilities

CVE-2018-18585

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-10-23 · updated 2026-06-17
• Weakness: CWE-476

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).

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04, 18.10
• Debian Linux: 8.0
• Kyzer Libmspack: 0.3-alpha, 0.4-alpha, 0.5-alpha, 0.6-alpha, 0.7-alpha
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0
• Starwindsoftware Starwind Virtual San: all versions
• SUSE Linux Enterprise Server: 11-sp3, 12-ga, 12-sp1, 12-sp2

References

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

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