CVE-2013-3951

Name: CVE-2013-3951
Creator: NVD / NIST
Published: 2013-06-05T14:39:55.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.46%

Last modified Jun 16, 2026

CVE-2013-3951 is a vulnerability of currently unknown severity. sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.

Metrics

EPSS Probability

0.46%

36.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	<= 8.2
Apple	Mac Os X	<= 10.10.4
Apple	Watchos	<= 1.0.1
Apple	Iphone Os	6.1.3
Apple	Mac Os X	10.8.0
Apple	Mac Os X	10.8.1
Apple	Mac Os X	10.8.2
Apple	Mac Os X	10.8.3
Apple	Mac Os X	10.8.4

References

http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdfExploit
http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.htmlVendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlVendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlVendor Advisory
http://www.securitytracker.com/id/1033703
http://www.syscan.org/index.php/sg/program/day/2
https://support.apple.com/HT205212Vendor Advisory
https://support.apple.com/HT205213Vendor Advisory
https://support.apple.com/HT205267Vendor Advisory
http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdfExploit
http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.htmlVendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlVendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlVendor Advisory
http://www.securitytracker.com/id/1033703
http://www.syscan.org/index.php/sg/program/day/2
https://support.apple.com/HT205212Vendor Advisory
https://support.apple.com/HT205213Vendor Advisory
https://support.apple.com/HT205267Vendor Advisory

Timeline

Published: Jun 5, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-3951?

How severe is CVE-2013-3951?

Severity scoring for CVE-2013-3951 is pending analysis. The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2013-3951?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-3951?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST