CVE-2018-14679

Description

An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.93% Top 30%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://usn.ubuntu.com/3728-3/ third party advisory vendor advisory
https://www.debian.org/security/2018/dsa-4260 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html third party advisory mailing list
https://github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312a third party advisory patch
https://bugs.debian.org/904802 issue tracking mailing list patch third party advisory
http://www.openwall.com/lists/oss-security/2018/07/26/1 third party advisory mailing list
https://access.redhat.com/errata/RHSA-2018:3505 third party advisory vendor advisory
https://usn.ubuntu.com/3789-2/ third party advisory vendor advisory
https://usn.ubuntu.com/3728-2/ third party advisory vendor advisory
http://www.securitytracker.com/id/1041410 vdb entry third party advisory
https://usn.ubuntu.com/3728-1/ third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:3327 third party advisory vendor advisory
https://security.gentoo.org/glsa/201903-20 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14679?
CVE-2018-14679 has been scored as a medium severity vulnerability.
How to fix CVE-2018-14679?
To fix CVE-2018-14679, 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-2018-14679 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-14679 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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