CVE-2023-46246

Vim is an improved version of the good old UNIX editor Vi. Heap-use-after-free in memory allocated in the function `ga_grow_inner` in in the file `src/alloc.c` at line 748, which is freed in the file `src/ex_docmd.c` in the function `do_cmdline` at line 1010 and then used again in `src/cmdhist.c` at line 759. When using the `:history` command, it's possible that the provided argument overflows the accepted value. Causing an Integer Overflow and potentially later an use-after-free. This vulnerability has been patched in version 9.0.2068.

• CWE-190
• CWE-416
• CWE-190
• CWE-416

• https://github.com/vim/vim/commit/9198c1f2b1ddecde22af918541e0de2a32f0f45aPatch
• https://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgmExploit, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/
• https://security.netapp.com/advisory/ntap-20231208-0006/
• https://github.com/vim/vim/commit/9198c1f2b1ddecde22af918541e0de2a32f0f45aPatch
• https://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgmExploit, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/
• https://security.netapp.com/advisory/ntap-20231208-0006/

Published

Oct 27, 2023

Last Modified

Jun 23, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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