PT-2018-14530 · Libmspack+1 · Libmspack+1

Hanno Böck · Published 2018-10-23 · Updated 2024-08-05 · CVE-2018-18586

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libmspack versions prior to 0.8alpha

Description The issue arises from the chmextract.c sample program distributed with libmspack, which fails to protect against absolute or relative pathnames in CHM files. This leads to a Directory Traversal issue. It's worth noting that the vendor disputes this being a libmspack vulnerability, as chmextract.c was intended only as a source-code example and not a supported application.

Recommendations For versions prior to 0.8alpha, update to version 0.8alpha or later to resolve the issue. As a temporary workaround, consider restricting the use of the chmextract.c sample program until a patch is applied.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2018-18586

MGASA-2018-0455

OPENSUSE-SU-2022:0069-1

OPENSUSE-SU-2022_0069-1

OPENSUSE-SU-2022_0069-2

OPENSUSE-SU-2024:13619-1

SUSE-SU-2022:0069-1

SUSE-SU-2022:0069-2

SUSE-SU-2022:4287-1

SUSE-SU-2022_0069-1

SUSE-SU-2022_4287-1

Affected Products

Suse

Libmspack

References · 31

• 🔥 https://github.com/kyz/libmspack/commit/7cadd489698be117c47efcadd742651594429e6d · Exploit
• https://security.gentoo.org/glsa/201903-20 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0069-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4287-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-18586 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-18586 · Security Note
• https://osv.dev/vulnerability/MGASA-2018-0455 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:0069-2 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:0069-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0455.html · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-18586 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2018-18586 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-18586 · Vendor Advisory
• https://suse.com/support/update/announcement/2022/suse-su-20224287-1 · Note
• https://usn.ubuntu.com/3728-1 · Note