Off-by-one Error Affecting libmspack package, versions <0.7-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-LIBMSPACK-324931
- published28 Jul 2018
- disclosed28 Jul 2018
Introduced: 28 Jul 2018
CVE-2018-14679 (opens in a new tab)How to fix?
Upgrade Debian:unstable libmspack to version 0.7-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libmspack package and not the libmspack package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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).
References
- https://security-tracker.debian.org/tracker/CVE-2018-14679
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14679
- https://bugs.debian.org/904802
- https://www.debian.org/security/2018/dsa-4260
- https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html
- https://security.gentoo.org/glsa/201903-20
- https://github.com/kyz/libmspack/commit/72e70a921f0f07fee748aec2274b30784e1d312a
- http://www.openwall.com/lists/oss-security/2018/07/26/1
- https://access.redhat.com/errata/RHSA-2018:3327
- https://access.redhat.com/errata/RHSA-2018:3505
- http://www.securitytracker.com/id/1041410
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-14679
- https://usn.ubuntu.com/3728-1/
- https://usn.ubuntu.com/3728-2/
- https://usn.ubuntu.com/3728-3/
- https://usn.ubuntu.com/3789-2/