Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2009-1897

The tun_chr_poll function in drivers/net/tun.c in the tun subsystem in the Linux kernel 2.6.30 and 2.6.30.1, when the -fno-delete-null-pointer-checks gcc option is omitted, allows local users to gain privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.

Published

2009-07-20T17:30:54.733

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.9 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.4

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30 Yes
Operating System linux linux_kernel 2.6.30.1 Yes
References