SB2012082501 - Input validation error in GNU Emacs
Published: August 25, 2012 Updated: August 4, 2020
Security Bulletin ID
SB2012082501
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2012-3479)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
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.
References
- 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