CVE Vulnerability

CVE-2007-3731

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.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

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

Configuration 1

cpe:2.3:o:linux:linux_kernel:2.6.21:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.20:*:*:*:*:*:*:*
Information

Published : 2007-09-17 05:17

Updated : 2023-02-13 02:18

NVD link : CVE-2007-3731

Mitre link : CVE-2007-3731

Products Affected
No products.
CWE
CWE-20