CVE-2018-18585

moderate-risk

Published 2018-10-23

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).

Do I need to act?

1.3% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

NETWORK / LOW complexity

Affected Products (19)

Libmspack

Debian Linux

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Workstation

Ubuntu Linux

Linux Enterprise Server

Starwind Virtual San

Affected Vendors

Debian Redhat Suse Canonical Starwindsoftware Kyzer

References (20)

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2049

Issue Tracking https://bugs.debian.org/911637

Exploit https://github.com/kyz/libmspack/commit/8759da8db6ec9e866cb8eb143313f397f925bb4f

Mailing List https://lists.debian.org/debian-lts-announce/2018/10/msg00017.html

Third 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/

Mailing List https://www.openwall.com/lists/oss-security/2018/10/22/1

Third Party Advisory https://www.starwindsoftware.com/security/sw-20181213-0002/