Incorrect Type Conversion or Cast Affecting ghostscript package, versions <9.26~dfsg-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.
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Test your applications- Snyk IDSNYK-DEBIAN12-GHOSTSCRIPT-1547003
- published2 Dec 2018
- disclosed23 Nov 2018
Introduced: 23 Nov 2018
CVE-2018-19477 (opens in a new tab)How to fix?
Upgrade Debian:12 ghostscript to version 9.26~dfsg-1 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:12 relevant fixed versions and status.
psi/zfjbig2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access restrictions because of a JBIG2Decode type confusion.
References
- https://security-tracker.debian.org/tracker/CVE-2018-19477
- https://bugs.ghostscript.com/show_bug.cgi?id=700168
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19477
- https://www.debian.org/security/2018/dsa-4346
- https://lists.debian.org/debian-lts-announce/2018/11/msg00036.html
- http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=ef252e7dc214bcbd9a2539216aab9202848602bb
- http://git.ghostscript.com/?p=ghostpdl.git;h=606a22e77e7f081781e99e44644cd0119f559e03
- https://semmle.com/news/semmle-discovers-severe-vulnerability-ghostscript-postscript-pdf
- https://www.ghostscript.com/doc/9.26/History9.htm#Version9.26
- https://access.redhat.com/errata/RHBA-2019:0327
- https://access.redhat.com/errata/RHSA-2019:0229
- http://www.securityfocus.com/bid/106154
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-19477
- https://usn.ubuntu.com/3831-1/
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=ef252e7dc214bcbd9a2539216aab9202848602bb
- http://git.ghostscript.com/?p=ghostpdl.git%3Bh=606a22e77e7f081781e99e44644cd0119f559e03