CVE-2007-2525

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: 2007-05-08 · updated 2026-06-16

Description

Memory leak in the PPP over Ethernet (PPPoE) socket implementation in the Linux kernel before 2.6.21-git8 allows local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized.

Affected products

Linux kernel: through 2.6.21

References

http://kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.21-git8.log
http://rhn.redhat.com/errata/RHSA-2007-0488.html
http://secunia.com/advisories/25163
http://secunia.com/advisories/25700
http://secunia.com/advisories/25838
http://secunia.com/advisories/26133
http://secunia.com/advisories/26139
http://secunia.com/advisories/26289
http://secunia.com/advisories/26450
http://secunia.com/advisories/26620
http://secunia.com/advisories/26664
http://secunia.com/advisories/27227

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