CVE-2013-3954

Public Exploit

Description

The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.

Category

6.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory apple.com Vendor Advisory apple.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.syscan.org/index.php/sg/program/day/2
http://www.securitytracker.com/id/1029054 vdb entry
http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf exploit
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html vendor advisory
http://secunia.com/advisories/54886 third party advisory
http://support.apple.com/kb/HT5934
http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-3954?
CVE-2013-3954 has been scored as a medium severity vulnerability.
How to fix CVE-2013-3954?
To fix CVE-2013-3954, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-3954 being actively exploited in the wild?
It is possible that CVE-2013-3954 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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