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CVE-2013-3954

6.9 · MEDIUM

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 servi…

Published Jun 5, 2013appleCWE-20EPSS 0.42%

Overview

CVE-2013-3954 is a medium-severity vulnerability affecting apple mac_os_x. It was published on June 5, 2013 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from apple. Update mac_os_x to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
appleiphone_os0Affected

References

Refantid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdfReflists.apple.com/archives/security-announce/2013/Oct/msg00004.htmlReflists.apple.com/archives/security-announce/2013/Sep/msg00006.htmlRefsecunia.com/advisories/54886Refsupport.apple.com/kb/HT5934Refwww.securitytracker.com/id/1029054Refwww.syscan.org/index.php/sg/program/day/2Refantid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdfReflists.apple.com/archives/security-announce/2013/Oct/msg00004.htmlReflists.apple.com/archives/security-announce/2013/Sep/msg00006.html

How CyberStrike helps

Frequently asked questions

What is CVE-2013-3954?

CVE-2013-3954 is a medium-severity vulnerability affecting apple mac_os_x. It was published on June 5, 2013 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

How severe is CVE-2013-3954?

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-3954?

Check the references section for vendor advisories and patches from apple. Update mac_os_x to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-3954?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-3954 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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