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CVE-2023-28879

9.8 · CRITICAL

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.

Published Mar 31, 2023CWE-787EPSS 6.34%

Overview

CVE-2023-28879 is a critical-severity vulnerability. It was published on March 31, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2023/04/12/4Refbugs.ghostscript.com/show_bug.cgi?id=706494Refghostscript.readthedocs.io/en/latest/News.htmlRefgit.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=37ed5022cecd584de868933b5b60da2e995b3179Reflists.debian.org/debian-lts-announce/2023/04/msg00003.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CI6UCKM3XMK7PYNIRGAVDJ5VKN6XYZOE/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DHJX62KSRIOBZA6FKONMJP7MEFY7LTH2/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MADLP3GWJFLLFVNZGEDNPMDQR6CCXAHN/Refsecurity.gentoo.org/glsa/202309-03Refwww.debian.org/security/2023/dsa-5383

How CyberStrike helps

Frequently asked questions

What is CVE-2023-28879?

CVE-2023-28879 is a critical-severity vulnerability. It was published on March 31, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-28879?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-28879?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-28879?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-28879 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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