CVE-2009-2194

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-08-06 · updated 2026-06-16

Description

Apple Mac OS X 10.5 before 10.5.8 does not properly share file descriptors over local sockets, which allows local users to cause a denial of service (system crash) by placing file descriptors in messages sent to a socket that has no receiver, related to a "synchronization issue."

Affected products

macOS: 10.5.6, 10.5, 10.5.0, 10.5.1, 10.5.2, 10.5.2-2008-002 (+4)
Apple Mac Os X Server: 10.5, 10.5.0, 10.5.1, 10.5.2, 10.5.3, 10.5.4 (+3)

References

http://lists.apple.com/archives/security-announce/2009/Aug/msg00001.html
http://osvdb.org/56836
http://secunia.com/advisories/36096
http://support.apple.com/kb/HT3757
http://www.securityfocus.com/bid/35954
http://www.securitytracker.com/id?1022672
http://www.us-cert.gov/cas/techalerts/TA09-218A.html
http://www.vupen.com/english/advisories/2009/2172
https://exchange.xforce.ibmcloud.com/vulnerabilities/52439
http://lists.apple.com/archives/security-announce/2009/Aug/msg00001.html
http://osvdb.org/56836
http://secunia.com/advisories/36096

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