Improper Input Validation Affecting ghostscript-cups package, versions <0:9.07-31.el7_6.6
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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Start learning- Snyk IDSNYK-RHEL7-GHOSTSCRIPTCUPS-4896687
- published26 Jul 2021
- disclosed12 Sept 2018
Introduced: 12 Sep 2018
CVE-2018-16802 (opens in a new tab)How to fix?
Upgrade RHEL:7 ghostscript-cups to version 0:9.07-31.el7_6.6 or higher.
This issue was patched in RHSA-2018:3834.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ghostscript-cups package and not the ghostscript-cups package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" checking when running out of stack during exception handling could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction. This is due to an incomplete fix for CVE-2018-16509.
References
- https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5812b1b78fc4d36fdc293b7859de69241140d590
- https://access.redhat.com/security/cve/CVE-2018-16802
- https://www.debian.org/security/2018/dsa-4294
- https://security.gentoo.org/glsa/201811-12
- http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=3e5d316b72e3965b7968bb1d96baa137cd063ac6
- http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=643b24dbd002fb9c131313253c307cf3951b3d47
- https://seclists.org/oss-sec/2018/q3/229
- https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html
- https://seclists.org/oss-sec/2018/q3/228
- https://access.redhat.com/errata/RHSA-2018:3834
- https://usn.ubuntu.com/3768-1/
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=3e5d316b72e3965b7968bb1d96baa137cd063ac6
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=643b24dbd002fb9c131313253c307cf3951b3d47
- https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5812b1b78fc4d36fdc293b7859de69241140d590