Linux kernel Tehuti network buffer overflow

linux-kernel-tehuti-bo (42132) The risk level is classified as HighHigh Risk

Description:

Linux kernel is vulnerable to a buffer overflow, caused by improper bounds checking by the Tehuti network driver. By sending a specially-crafted BDX_OP_WRITE IOCTL call, a local attacker could overflow a buffer to corrupt kernel memory and execute arbitrary code on the system or cause the system to crash.

Platforms Affected:

  • Canonical, Ubuntu 8.04 LTS
  • Linux, Kernel 2.6.0 test9
  • Linux, Kernel 2.6.0 test8
  • Linux, Kernel 2.6.0 test7
  • Linux, Kernel 2.6.0 test6
  • Linux, Kernel 2.6.0 test4
  • Linux, Kernel 2.6.0 test3
  • Linux, Kernel 2.6.0 test2
  • Linux, Kernel 2.6.0 test11
  • Linux, Kernel 2.6.0 test9-cvs
  • Linux, Kernel 2.6.0 test5
  • Linux, Kernel 2.6.10
  • Linux, Kernel 2.6.11.10
  • Linux, Kernel 2.6.11.12
  • Linux, Kernel 2.6.11.4
  • Linux, Kernel 2.6.11.5
  • Linux, Kernel 2.6.11.6
  • Linux, Kernel 2.6.11.7
  • Linux, Kernel 2.6.11.8
  • Linux, Kernel 2.6.11.9
  • Linux, Kernel 2.6.15
  • Linux, Kernel 2.6.18
  • Linux, Kernel 2.6.20
  • Linux, Kernel 2.6.20.1
  • Linux, Kernel 2.6.20.11
  • Linux, Kernel 2.6.20.13
  • Linux, Kernel 2.6.20.2
  • Linux, Kernel 2.6.20.3
  • Linux, Kernel 2.6.21
  • Linux, Kernel 2.6.21 rc7
  • Linux, Kernel 2.6.21 rc5
  • Linux, Kernel 2.6.21 rc4
  • Linux, Kernel 2.6.21 rc3
  • Linux, Kernel 2.6.21 rc6
  • Linux, Kernel 2.6.23.1
  • Linux, Kernel 2.6.23.14
  • Linux, Kernel 2.6.23.9
  • Linux, Kernel 2.6.24 rc2
  • Linux, Kernel 2.6.3
  • Linux, Kernel 2.6.4
  • Linux, Kernel 2.6.5
  • Linux, Kernel 2.6.6
  • Linux, Kernel 2.6.6 rc1
  • Linux, Kernel 2.6.7
  • Linux, Kernel 2.6.8
  • MandrakeSoft, Mandrake Linux 2008.1
  • MandrakeSoft, Mandrake Linux 2008.1 X86_64

Remedy:

Upgrade to the latest version of Linux kernel (2.6.25.1 or later), available from the The Linux Kernel Archives Web site. See References.

Consequences:

Gain Access

References:

  • The Linux Kernel Archives Web site, The Linux Kernel Archives at http://www.kernel.org/.
  • The Linux Kernel Archives Web site, ChangeLog-2.6.25.1 at http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.1.
  • BID-29003: Linux Kernel 'dnotify.c' Local Race Condition Vulnerability
  • BID-29014: Linux Kernel Tehuti Network Driver 'BDX_OP_WRITE' Memory Corruption Vulnerability
  • CVE-2008-1675: The bdx_ioctl_priv function in the tehuti driver (tehuti.c) in Linux kernel 2.6.x before 2.6.25.1 does not properly check certain information related to register size, which has unspecified impact and local attack vectors, probably related to reading or writing kernel memory.
  • MDVSA-2008:109: Updated kernel packages fix bugs
  • MDVSA-2008:167: kernel
  • SA30044: Linux Kernel Multiple Vulnerabilities
  • SECTRACK ID: 1019960: Linux Kernel Tehuti Network Driver May Let Local Users Gain Elevated Privileges
  • USN-614-1: Linux kernel vulnerabilities
  • VUPEN/ADV-2008-1406: Linux Kernel Local Privilege Escalation and Memory Corruption Issues

Reported:

May 01, 2008

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