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CVE-2023-48706

3.6 · LOW

Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability.

Published Nov 22, 2023CWE-416EPSS 0.54%

Overview

CVE-2023-48706 is a low-severity vulnerability. It was published on November 22, 2023 and has a CVSS 3.1 base score of 3.6 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.6, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.

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/2023/11/22/3GitHubgithub.com/gandalf4a/crash_report/blob/main/vim/vim_huafGitHubgithub.com/vim/vim/commit/26c11c56888d01e298cd8044caf860f3c26f57bbGitHubgithub.com/vim/vim/pull/13552GitHubgithub.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53qReflists.fedoraproject.org/archives/list/[email protected]/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/Reflists.fedoraproject.org/archives/list/[email protected]/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/Refsecurity.netapp.com/advisory/ntap-20240105-0001/Refwww.openwall.com/lists/oss-security/2023/11/22/3GitHubgithub.com/gandalf4a/crash_report/blob/main/vim/vim_huaf

How CyberStrike helps

Frequently asked questions

What is CVE-2023-48706?

CVE-2023-48706 is a low-severity vulnerability. It was published on November 22, 2023 and has a CVSS 3.1 base score of 3.6 (LOW).

How severe is CVE-2023-48706?

This vulnerability has a CVSS 3.1 base score of 3.6, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-48706?

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-2023-48706?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-48706 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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