CVE-2007-3731

N/A Unknown
Published: September 17, 2007 Modified: April 23, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://bugzilla.kernel.org/show_bug.cgi?id=8765
Source: secalert@redhat.com
Exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8
Source: secalert@redhat.com
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f
Source: secalert@redhat.com
http://osvdb.org/37286
Source: secalert@redhat.com
http://secunia.com/advisories/26935
Source: secalert@redhat.com
http://secunia.com/advisories/26955
Source: secalert@redhat.com
http://secunia.com/advisories/26978
Source: secalert@redhat.com
http://secunia.com/advisories/27322
Source: secalert@redhat.com
http://secunia.com/advisories/29159
Source: secalert@redhat.com
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
Source: secalert@redhat.com
http://www.debian.org/security/2007/dsa-1378
Source: secalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2007-0940.html
Source: secalert@redhat.com
http://www.securityfocus.com/archive/1/488972/100/0/threaded
Source: secalert@redhat.com
http://www.securityfocus.com/bid/25801
Source: secalert@redhat.com
http://www.ubuntu.com/usn/usn-518-1
Source: secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=248324
Source: secalert@redhat.com
Patch
https://issues.rpath.com/browse/RPL-2304
Source: secalert@redhat.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394
Source: secalert@redhat.com
http://bugzilla.kernel.org/show_bug.cgi?id=8765
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127ad1da8
Source: af854a3a-2127-422b-91ae-364da2661108
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2aef6f
Source: af854a3a-2127-422b-91ae-364da2661108
http://osvdb.org/37286
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26935
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26955
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/26978
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/27322
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/29159
Source: af854a3a-2127-422b-91ae-364da2661108
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2007/dsa-1378
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2007-0940.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/488972/100/0/threaded
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/25801
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/usn-518-1
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=248324
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://issues.rpath.com/browse/RPL-2304
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394
Source: af854a3a-2127-422b-91ae-364da2661108

36 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.5%
40th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

linux

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