CVE-2007-2875

Severity: low (CVSS 2.1 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: 2007-06-11 · updated 2026-06-16
Weakness: CWE-189

Description

Integer underflow in the cpuset_tasks_read function in the Linux kernel before 2.6.20.13, and 2.6.21.x before 2.6.21.4, when the cpuset filesystem is mounted, allows local users to obtain kernel memory contents by using a large offset when reading the /dev/cpuset/tasks file.

Affected products

Canonical Ubuntu Linux: 6.06, 6.10, 7.04
Debian Linux: 3.1
Linux kernel: before 2.6.20.13; from 2.6.21 before 2.6.21.4 — fixed in 2.6.20.13, 2.6.21.4

How to fix

Upgrade to a fixed version: Linux kernel 2.6.20.13, 2.6.21.4. Check the vendor advisory for mitigations.

References

http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.13
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.4
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=541
http://osvdb.org/37113
http://secunia.com/advisories/26133
http://secunia.com/advisories/26139
http://secunia.com/advisories/26620
http://secunia.com/advisories/26647
http://secunia.com/advisories/26760
http://secunia.com/advisories/27227
http://www.debian.org/security/2007/dsa-1363
http://www.mandriva.com/security/advisories?name=MDKSA-2007:171

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