Use After Free Affecting ghostscript package, versions <9.20~dfsg-3.2+deb9u4
Threat Intelligence
Exploit maturity not defined.
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.
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Test your applications- Snyk IDSNYK-DEBIAN9-GHOSTSCRIPT-381697
- published25 Sept 2018
- disclosed5 Sept 2018
Introduced: 5 Sep 2018
CVE-2018-16540 (opens in a new tab)How to fix?
Upgrade Debian:9 ghostscript to version 9.20~dfsg-3.2+deb9u4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ghostscript package and not the ghostscript package as distributed by Debian.
See How to fix? for Debian:9 relevant fixed versions and status.
In Artifex Ghostscript before 9.24, attackers able to supply crafted PostScript files to the builtin PDF14 converter could use a use-after-free in copydevice handling to crash the interpreter or possibly have unspecified other impact.
References
- https://security-tracker.debian.org/tracker/CVE-2018-16540
- https://bugs.ghostscript.com/show_bug.cgi?id=699661
- https://www.debian.org/security/2018/dsa-4288
- https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html
- https://security.gentoo.org/glsa/201811-12
- http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=c432131c3fdb2143e148e8ba88555f7f7a63b25e
- https://www.artifex.com/news/ghostscript-security-resolved/
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2019:0229
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-16540
- https://usn.ubuntu.com/3768-1/
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=c432131c3fdb2143e148e8ba88555f7f7a63b25e