PT-2010-4059 · Linux · Linux Kernel

Eugene Teo · Published 2010-09-08 · Updated 2023-02-13 · CVE-2010-2495

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.34

Description The issue is related to the L2TP implementation in the Linux kernel, specifically the pppol2tp xmit function in drivers/net/pppol2tp.c. It does not properly validate certain values associated with an interface. This can be exploited by attackers to cause a denial of service, resulting in a NULL pointer dereference and OOPS, or possibly have other unspecified impacts. The attack vectors are related to a routing change.

Recommendations For Linux kernel versions prior to 2.6.34, update to version 2.6.34 or later to resolve the issue.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2010-2495

Affected Products

Linux Kernel

References · 10

• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2010-2495 · Security Note
• http://ubuntu.com/usn/USN-1000-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00000.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=607054 · Vendor Advisory
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3feec9095d12e311b7d4eb7fe7e5dfa75d4a72a5 · Note
• http://openwall.com/lists/oss-security/2010/07/04/3 · Note
• http://openwall.com/lists/oss-security/2010/06/23/3 · Note
• http://openwall.com/lists/oss-security/2010/07/04/2 · Note
• http://openwall.com/lists/oss-security/2010/07/06/11 · Note