CVE-2022-45939 | BDVDB-2026-189479 Detail
Description#
GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the "ctags *" command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References#
- https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d48bb4874bc6cd3e69c7a15fc3c91cc141025c51
- https://lists.debian.org/debian-lts-announce/2022/12/msg00046.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GOXIH2FDEQJEAARE52C3GHTLGQFBYPIB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOSK3J7BBAEI4IITW2DRUKLQYUZYKH6Y/
- https://www.debian.org/security/2023/dsa-5314
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.