CVE Vulnerabilities

CVE-2004-2536

Published: Dec 31, 2004 | Modified: Jul 11, 2017
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Affected Software

Name Vendor Start Version End Version
Linux_kernel Linux 2.6.0 2.6.0
Linux_kernel Linux 2.6.1 2.6.1
Linux_kernel Linux 2.6.1 2.6.1
Linux_kernel Linux 2.6.1 2.6.1
Linux_kernel Linux 2.6.2 2.6.2
Linux_kernel Linux 2.6.3 2.6.3
Linux_kernel Linux 2.6.4 2.6.4
Linux_kernel Linux 2.6.5 2.6.5

References