SB2024062429 - Remote code execution in Emacs
Published: June 24, 2024
Security Bulletin ID
SB2024062429
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of Potentially Dangerous Function (CVE-ID: CVE-2024-39331)
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.
Remediation
Install update from vendor's website.
References
- 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