Use of Potentially Dangerous Function in Emacs - CVE-2024-39331
Published: June 24, 2024
Vulnerability identifier: #VU93118
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2024-39331
CWE-ID: CWE-676
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
Emacs
Emacs
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev even when it specifies an unsafe function. A remote attacker can execute arbitrary OS commands on the system.
How to mitigate CVE-2024-39331
Install updates from vendor's website.
Sources
- https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-29
- https://list.orgmode.org/87sex5gdqc.fsf%40localhost/
- https://lists.gnu.org/archive/html/info-gnu-emacs/2024-06/msg00000.html
- https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=f4cc61636947b5c2f0afc67174dd369fe3277aa8
- https://www.openwall.com/lists/oss-security/2024/06/23/1
- https://www.openwall.com/lists/oss-security/2024/06/23/2
- https://news.ycombinator.com/item?id=40768225