The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-1862-1 | New Linux 2.6.26 packages fix privilege escalation |
Debian DSA |
DSA-1864-1 | New Linux 2.6.24 packages fix privilege escalation |
Debian DSA |
DSA-1865-1 | New Linux 2.6.18 packages fix several vulnerabilities |
Ubuntu USN |
USN-819-1 | Linux kernel vulnerability |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-07T05:59:57.073Z
Reserved: 2009-08-05T00:00:00
Link: CVE-2009-2692
No data.
Status : Deferred
Published: 2009-08-14T15:16:27.500
Modified: 2025-04-09T00:30:58.490
Link: CVE-2009-2692
OpenCVE Enrichment
No data.
Debian DSA
Ubuntu USN