Linux Kernel dccp_feat_change() buffer overflow

linux-kernel-dccpfeatchange-bo (43034) The risk level is classified as HighHigh Risk

Description:

Linux Kernel is vulnerable to a buffer overflow, caused by improper bounds checking by the dccp_feat_change() function within the Datagram Congestion Control Protocol (DCCP) subsystem. By sending a specially-crafted request, a local attacker could overflow a buffer and execute arbitrary code on the system with kernel privileges or cause the application to crash.

*CVSS:

Base Score: 7.2
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.3
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Linux Kernel (2.6.25.5 or later), available from The Linux Kernel Archives Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • The Linux Kernel Archives Web site: The Linux Kernel Archives.
  • BID-29603: Linux Kernel DCCP Subsystem Buffer Overflow Vulnerability
  • CVE-2008-2358: Integer overflow in the dccp_feat_change function in net/dccp/feat.c in the Datagram Congestion Control Protocol (DCCP) subsystem in the Linux kernel 2.6.18, and 2.6.17 through 2.6.20, allows local users to gain privileges via an invalid feature length, which leads to a heap-based buffer overflow.
  • DSA-1592: linux-2.6 -- heap overflow
  • MDVSA-2008:112: Updated kernel packages fix security issues
  • MDVSA-2008:167: kernel
  • RHSA-2008-0519: Important: kernel security and bug fix update
  • SA30000: Debian update for linux-2.6
  • SECTRACK ID: 1020211: Linux Kernel Buffer Overflow in DCCP Subsystem May Let Remote Users Execute Arbitrary Code
  • SUSE-SA:2008:030: Linux kernel security update
  • USN-625-1: Linux kernel vulnerabilities

Platforms Affected:

  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 7.04
  • Canonical Ubuntu 7.10
  • Canonical Ubuntu 8.04 LTS
  • Debian Debian Linux 4.0
  • Linux Linux Kernel 2.6.18
  • MandrakeSoft Mandrake Linux 2007.1
  • MandrakeSoft Mandrake Linux 2007.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.1 X86_64
  • MandrakeSoft Mandrake Linux 2008.1
  • Novell OpenSUSE 10.2
  • Novell OpenSUSE 10.3
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5.2.z EUS

Reported:

Jun 09, 2008

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