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…

published September 17, 2007

CVSS
—
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00512 · 42.8th percentile
Published
2007-09-17T17:00Z
EPSS history
Timeline
  • 17 SEP 17:00Z
    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…
    cvelistv5