Input validation error in Emacs - CVE-2012-3479
Published: August 25, 2012 / Updated: August 4, 2020
Vulnerability identifier: #VU33935
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-3479
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Emacs
Emacs
Software vendor:
GNU
GNU
Description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
lisp/files.el in Emacs 23.2, 23.3, 23.4, and 24.1 automatically executes eval forms in local-variable sections when the enable-local-variables option is set to :safe, which allows user-assisted remote attackers to execute arbitrary Emacs Lisp code via a crafted file.
Remediation
Install update from vendor's website.
External links
- http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12155
- http://lists.opensuse.org/opensuse-updates/2012-10/msg00057.html
- http://secunia.com/advisories/50157
- http://secunia.com/advisories/50801
- http://www.debian.org/security/2013/dsa-2603
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:076
- http://www.openwall.com/lists/oss-security/2012/08/13/1
- http://www.openwall.com/lists/oss-security/2012/08/13/2
- http://www.securityfocus.com/bid/54969
- http://www.securitytracker.com/id?1027375
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.420006
- http://www.ubuntu.com/usn/USN-1586-1