CVE-2004-2536

Linux kernel 2.6-2.6.5 - Privilege Escalation

Title source: llm
STIX 2.1

Description

The exit_thread function (process.c) in Linux kernel 2.6 through 2.6.5 does not invalidate the per-TSS io_bitmap pointers if a process obtains IO access permissions from the ioperm function but does not drop those permissions when it exits, which allows other processes to access the per-TSS pointers, access restricted memory locations, and possibly gain privileges.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/16106
Exploit, Patch mailing-list x_refsource_mlist
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1242.html
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/11577
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/5997
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/10302
Various Sources mailing-list x_refsource_mlist
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1265.html

Scores

EPSS 0.0234
EPSS Percentile 82.1%

Details

Status published
Products (6)
linux/linux_kernel 2.6.0
linux/linux_kernel 2.6.1 (3 CPE variants)
linux/linux_kernel 2.6.2
linux/linux_kernel 2.6.3
linux/linux_kernel 2.6.4
linux/linux_kernel 2.6.5
Published Dec 31, 2004
Tracked Since Feb 18, 2026