CVE-2007-3731

2007-09-17T17:17:00
ID CVE-2007-3731
Type cve
Reporter cve@mitre.org
Modified 2018-10-15T21:30:00

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.