National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2007-3731 Detail

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.

Source:  MITRE      Last Modified:  09/17/2007

Quick Info

CVE Dictionary Entry:
CVE-2007-3731
Original release date:
09/17/2007
Last revised:
09/28/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.9 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore:
6.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

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 Type Source Name
http://bugzilla.kernel.org/show_bug.cgi?id=8765 Exploit External Source MISC http://bugzilla.kernel.org/show_bug.cgi?id=8765
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=29eb51101c02df517ca64ec472d7501127ad1da8 External Source CONFIRM http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=29eb51101c02df517ca64ec472d7501127ad1da8
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a10d9a71bafd3a283da240d2868e71346d2aef6f External Source CONFIRM http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a10d9a71bafd3a283da240d2868e71346d2aef6f
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094 External Source CONFIRM http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
http://www.debian.org/security/2007/dsa-1378 External Source DEBIAN DSA-1378
http://www.redhat.com/support/errata/RHSA-2007-0940.html External Source REDHAT RHSA-2007:0940
http://www.securityfocus.com/archive/1/archive/1/488972/100/0/threaded External Source BUGTRAQ 20080229 rPSA-2008-0094-1 kernel
http://www.securityfocus.com/bid/25801 External Source BID 25801
http://www.ubuntu.com/usn/usn-518-1 External Source UBUNTU USN-518-1
https://bugzilla.redhat.com/show_bug.cgi?id=248324 Patch External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=248324
https://issues.rpath.com/browse/RPL-2304 External Source CONFIRM https://issues.rpath.com/browse/RPL-2304
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394 External Source OVAL oval:org.mitre.oval:def:10394

References to Check Content

Identifier:
oval:org.mitre.oval:def:10394
Check System:
http://oval.mitre.org/XMLSchema/oval-definitions-5
Hyperlink:
http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:10394

Technical Details

Vulnerability Type (View All)

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