PT-2011-1072 · Linux+2 · Linux Kernel+2

Eugene Teo · Published 2011-03-01 · Updated 2023-02-13 · CVE-2011-1093

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.38 kernel-kdumppae (affected versions not specified)

Description The issue is related to the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel. Specifically, the dccp rcv state process function does not properly handle packets for a CLOSED endpoint. This can be exploited by remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet. Additionally, multiple vulnerabilities in the kernel-kdumppae package of SUSE Linux Enterprise may lead to disruption of protected information availability, and these vulnerabilities can be exploited remotely.

Recommendations For Linux kernel versions prior to 2.6.38: Update to version 2.6.38 or later to resolve the issue. For kernel-kdumppae: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

NULL Pointer Dereference

Weakness Enumeration

CWE-20

CWE-476

Related Identifiers

BDU:2015-04607

CVE-2011-1093

DSA-2264-1

RHSA-2011:0498

RHSA-2011:0500

RHSA-2011:0833

RHSA-2011_0498

RHSA-2011_0833

Affected Products

Linux Kernel

Red Hat

Kernel-Kdumppae

References · 17

• https://linux.oracle.com/errata/ELSA-2011-0498.html · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2011-0833.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=682954 · Patch
• https://linux.oracle.com/errata/ELSA-2011-2015.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2011/03/08/4 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-1093 · Security Note
• http://openwall.com/lists/oss-security/2011/03/08/19 · Patch
• https://bdu.fstec.ru/vul/2015-04607 · Security Note
• https://github.com/torvalds/linux/commit/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8 · Note
• https://github.com/torvalds/linux/commit/4ff67b720c02c36e54d55b88c2931879b7db1cd2 · Note
• http://securityfocus.com/bid/46793 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=720dc34bbbe9493c7bd48b2243058b4e447a929d · Note
• http://downloads.avaya.com/css/P8/documents/100145416 · Note
• http://groups.google.com/group/fa.linux.kernel/msg/4a28ecb7f755a88d?dmode=source · Note
• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38 · Note