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CVE-2004-2536 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://secunia.com/advisories/11577	CVE	Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/16106	CVE
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.6	CVE
http://www.osvdb.org/5997	CVE
http://www.securityfocus.com/bid/10302	CVE
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1242.html	CVE	ExploitPatch
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1265.html	CVE
http://secunia.com/advisories/11577	[email protected]	Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/16106	[email protected]
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.6	[email protected]
http://www.osvdb.org/5997	[email protected]
http://www.securityfocus.com/bid/10302	[email protected]
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1242.html	[email protected]	ExploitPatch
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1265.html	[email protected]

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]

Affected Products

Product	Versions
linux linux kernel	2.6.0 2.6.1 2.6.1 rc1 2.6.1 rc2 2.6.2
CPE cpe:2.3:o:linux:linux_kernel:2.6.0:::::::* cpe:2.3:o:linux:linux_kernel:2.6.1:::::::* cpe:2.3:o:linux:linux_kernel:2.6.1:rc1:::::: cpe:2.3:o:linux:linux_kernel:2.6.1:rc2:::::: cpe:2.3:o:linux:linux_kernel:2.6.2:::::::* cpe:2.3:o:linux:linux_kernel:2.6.3:::::::* cpe:2.3:o:linux:linux_kernel:2.6.4:::::::* cpe:2.3:o:linux:linux_kernel:2.6.5:::::::* Remediation No remediation found in references.

Product

Versions

linux linux kernel

2.6.0

2.6.1

2.6.1 rc1

2.6.1 rc2

2.6.2

CPE

cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.5:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 16, 2026		[email protected]
Nov 20, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 11, 2017	CVE Modified	[email protected]
Dec 8, 2005	Initial Analysis	[email protected]