NVD

CVE-2007-3731 Detail

Deferred

This CVE record is not being prioritized for NVD enrichment efforts due to resource or other concerns.

Description

The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 4.9 MEDIUM

Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C)

Vendor Statements (disclaimer)

Official Statement from Red Hat (10/18/2007)

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, or 4.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://bugzilla.kernel.org/show_bug.cgi?id=8765	Exploit
http://bugzilla.kernel.org/show_bug.cgi?id=8765	Exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f
http://osvdb.org/37286
http://osvdb.org/37286
http://secunia.com/advisories/26935
http://secunia.com/advisories/26935
http://secunia.com/advisories/26955
http://secunia.com/advisories/26955
http://secunia.com/advisories/26978
http://secunia.com/advisories/26978
http://secunia.com/advisories/27322
http://secunia.com/advisories/27322
http://secunia.com/advisories/29159
http://secunia.com/advisories/29159
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
http://www.debian.org/security/2007/dsa-1378
http://www.debian.org/security/2007/dsa-1378
http://www.redhat.com/support/errata/RHSA-2007-0940.html
http://www.redhat.com/support/errata/RHSA-2007-0940.html
http://www.securityfocus.com/archive/1/488972/100/0/threaded
http://www.securityfocus.com/archive/1/488972/100/0/threaded
http://www.securityfocus.com/bid/25801
http://www.securityfocus.com/bid/25801
http://www.ubuntu.com/usn/usn-518-1
http://www.ubuntu.com/usn/usn-518-1
https://bugzilla.redhat.com/show_bug.cgi?id=248324	Patch
https://bugzilla.redhat.com/show_bug.cgi?id=248324	Patch
https://issues.rpath.com/browse/RPL-2304
https://issues.rpath.com/browse/RPL-2304
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	NIST

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )

cpe:2.3:o:linux:linux_kernel:2.6.20:::::::* Show Matching CPE(s)
cpe:2.3:o:linux:linux_kernel:2.6.21:::::::* Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found show changes

CVE Modified by CVE 11/20/2024 7:33:55 PM

Action	Type	New Value
Added	Reference	http://bugzilla.kernel.org/show_bug.cgi?id=8765
Added	Reference	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8
Added	Reference	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f
Added	Reference	http://osvdb.org/37286
Added	Reference	http://secunia.com/advisories/26935
Added	Reference	http://secunia.com/advisories/26955
Added	Reference	http://secunia.com/advisories/26978
Added	Reference	http://secunia.com/advisories/27322
Added	Reference	http://secunia.com/advisories/29159
Added	Reference	http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
Added	Reference	http://www.debian.org/security/2007/dsa-1378
Added	Reference	http://www.redhat.com/support/errata/RHSA-2007-0940.html
Added	Reference	http://www.securityfocus.com/archive/1/488972/100/0/threaded
Added	Reference	http://www.securityfocus.com/bid/25801
Added	Reference	http://www.ubuntu.com/usn/usn-518-1
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=248324
Added	Reference	https://issues.rpath.com/browse/RPL-2304
Added	Reference	https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394

CVE Modified by Red Hat, Inc. 2/02/2023 11:15:14 AM

Action	Type	Old Value	New Value
Changed	Description	The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function.	CVE-2007-3731 NULL pointer dereference triggered by ptrace
Added	Reference		http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8 [No Types Assigned]
Added	Reference		http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2007:0940 [No Types Assigned]
Added	Reference		https://access.redhat.com/security/cve/CVE-2007-3731 [No Types Assigned]
Removed	Reference	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=29eb51101c02df517ca64ec472d7501127ad1da8 [No Types Assigned]
Removed	Reference	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a10d9a71bafd3a283da240d2868e71346d2aef6f [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2007-3731
NVD Published Date:
09/17/2007
NVD Last Modified:
04/08/2025
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2007-3731 Detail

Description

Metrics

Vendor Statements (disclaimer)

Official Statement from Red Hat (10/18/2007)

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/20/2024 7:33:55 PM

CVE Modified by Red Hat, Inc. 5/13/2024 9:46:36 PM

CVE Modified by Red Hat, Inc. 2/12/2023 9:18:03 PM

CVE Modified by Red Hat, Inc. 2/02/2023 11:15:14 AM

CVE Modified by Red Hat, Inc. 10/15/2018 5:30:05 PM

CVE Modified by Red Hat, Inc. 9/28/2017 9:29:05 PM

Initial CVE Analysis 9/18/2007 8:27:00 PM

Quick Info