CVE-2009-2692 - CVE House
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Status published High CVE-2009-2692

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4,...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

linux kernel, debian linux, linux enterprise real time, enterprise linux desktop, enterprise linux eus, enterprise linux server, enterprise linux server aus, enterprise linux workstation
Vulnerable Versions:
2.4.4, 2.6.0, 4.0, 10, 5.0, 4.8, 5.3

Timeline

Official Publish: August 14th, 2009
Last Modified: August 7th, 2024
Added to House: July 19th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.