CVE-2006-2448

Severity: medium (CVSS 5.6 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: 2006-06-23 · updated 2026-06-16

Description

Linux kernel before 2.6.16.21 and 2.6.17, when running on PowerPC, does not perform certain required access_ok checks, which allows local users to read arbitrary kernel memory on 64-bit systems (signal_64.c) and cause a denial of service (crash) and possibly read kernel memory on 32-bit systems (signal_32.c).

Affected products

Linux kernel: 2.6.0, 2.6.0-test1, 2.6.0-test10, 2.6.0-test11, 2.6.0-test2, 2.6.0-test3 (+132)

References

http://secunia.com/advisories/20703
http://secunia.com/advisories/20831
http://secunia.com/advisories/20991
http://secunia.com/advisories/21179
http://secunia.com/advisories/21465
http://secunia.com/advisories/21498
http://secunia.com/advisories/22417
http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7c85d1f9d358b24c5b05c3a2783a78423775a080
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.21
http://www.novell.com/linux/security/advisories/2006_42_kernel.html
http://www.novell.com/linux/security/advisories/2006_47_kernel.html

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