CVE-2018-18586

Public Exploit

Description

chmextract.c in the chmextract sample program, as distributed with libmspack before 0.8alpha, does not protect against absolute/relative pathnames in CHM files, leading to Directory Traversal. NOTE: the vendor disputes that this is a libmspack vulnerability, because chmextract.c was only intended as a source-code example, not a supported application

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.41%
Vendor Advisory gentoo.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kyz/libmspack/commit/7cadd489698be117c47efcadd742651594429e6d vendor advisory exploit
https://www.openwall.com/lists/oss-security/2018/10/22/1 third party advisory mailing list
https://bugs.debian.org/911639 third party advisory mailing list
https://security.gentoo.org/glsa/201903-20 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-18586?
CVE-2018-18586 has been scored as a medium severity vulnerability.
How to fix CVE-2018-18586?
To fix CVE-2018-18586, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-18586 being actively exploited in the wild?
It is possible that CVE-2018-18586 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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