Buffer overflow in Artifex Ghostscript
CVE-2023-28879
In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential corruption of data internal to the PostScript interpreter, in base/sbcp.c. This affects BCPEncode, BCPDecode, TBCPEncode, and TBCPDecode. If the write buffer is filled to one byte less than full, and one then tries to write an escaped character, two bytes are written.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.063 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.063 · newest: 0.063 · change: 0.000
Affected products
- Artifex Ghostscript
- Debian Linux — versions 10.0, 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.ghostscript.com/show_bug.cgi (Exploit, Vendor Advisory)
- git.ghostscript.com/
- ghostscript.readthedocs.io/en/latest/News.html (Release Notes)
- lists.debian.org/debian-lts-announce/2023/04/msg00003.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5383 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.openwall.com/lists/oss-security/2023/04/12/4 (mailing-list)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202309-03 (vendor-advisory)
Frequently asked questions
- What is CVE-2023-28879?
- CVE-2023-28879 is a critical-severity vulnerability in Artifex Ghostscript, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-03-31.
- How severe is CVE-2023-28879?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-28879 known to be exploited?
- 26 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.