Scientific Linux Security Update : kernel on SL5.x i386/x86_64

High Nessus Plugin ID 60646

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

CVE-2009-2692 kernel: uninit op in SOCKOPS_WRAP() leads to privesc

CVE-2009-2698 kernel: udp socket NULL ptr dereference

These updated packages fix the following security issues :

- a flaw was found in the SOCKOPS_WRAP macro in the Linux kernel. This macro did not initialize the sendpage operation in the proto_ops structure correctly. A local, unprivileged user could use this flaw to cause a local denial of service or escalate their privileges.
(CVE-2009-2692, Important)

- a flaw was found in the udp_sendmsg() implementation in the Linux kernel when using the MSG_MORE flag on UDP sockets. A local, unprivileged user could use this flaw to cause a local denial of service or escalate their privileges. (CVE-2009-2698, Important)

These updated packages also fix the following bug :

- in the dlm code, a socket was allocated in tcp_connect_to_sock(), but was not freed in the error exit path. This bug led to a memory leak and an unresponsive system. A reported case of this bug occurred after running 'cman_tool kill -n [nodename]'.
(BZ#515432)

The system must be rebooted for this update to take effect.

Solution

Update the affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=515432

http://www.nessus.org/u?a5b78ab4

Plugin Details

Severity: High

ID: 60646

File Name: sl_20090824_kernel_on_SL5_x.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2012/08/01

Updated: 2019/10/25

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/08/24

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Linux Kernel Sendpage Local Privilege Escalation)

Reference Information

CVE: CVE-2009-2692, CVE-2009-2698

CWE: 119