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.
- Score
- CVSS 2.0 4.9 Medium
- Status
- Modified - secalert@redhat.com
- Published
- 2007-09-17
- Last modified
- 2024-08-07
- Weaknesses
- CWE-20
Affected products
References
- http://bugzilla.kernel.org/show_bug.cgi?id=8765
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=29eb51101c02df517ca64ec472d7501127a…
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=a10d9a71bafd3a283da240d2868e71346d2…
- http://osvdb.org/37286
- http://secunia.com/advisories/26935
- http://secunia.com/advisories/26955
- http://secunia.com/advisories/26978
- http://secunia.com/advisories/27322
- http://secunia.com/advisories/29159
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
- http://www.debian.org/security/2007/dsa-1378
- http://www.redhat.com/support/errata/RHSA-2007-0940.html
- http://www.securityfocus.com/archive/1/488972/100/0/threaded
- http://www.securityfocus.com/bid/25801
- http://www.ubuntu.com/usn/usn-518-1
- https://bugzilla.redhat.com/show_bug.cgi?id=248324
- https://issues.rpath.com/browse/RPL-2304
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10394
