Improper Input Validation Affecting torvalds/linux package, versions [2.6.20,2.6.21]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.51% (40th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004160
  • published26 Jan 2022
  • disclosed17 Sept 2007
  • creditUnknown

Introduced: 17 Sep 2007

CVE-2007-3731  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

There is no fixed version for torvalds/linux.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. 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.

CVSS Base Scores

version 3.1