Detections
Analytics
CentOS 5 : kernel (CESA-2009:1222)
high Nessus Plugin ID 43777
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated kernel packages that fix two security issues and a bug are now available for Red Hat Enterprise Linux 5.This update has been rated as having important security impact by the Red Hat Security Response Team.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
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)
Red Hat would like to thank Tavis Ormandy and Julien Tinnes of the Google Security Team for responsibly reporting these flaws.
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)
Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
Solution
Update the affected kernel packages.See Also
Plugin Details
Severity: High
ID: 43777
File Name: centos_RHSA-2009-1222.nasl
Version: 1.22
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 1/6/2010
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.6
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:kernel-pae, p-cpe:/a:centos:centos:kernel-headers, p-cpe:/a:centos:centos:kernel-debug, p-cpe:/a:centos:centos:kernel-xen, p-cpe:/a:centos:centos:kernel, p-cpe:/a:centos:centos:kernel-doc, p-cpe:/a:centos:centos:kernel-debug-devel, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:kernel-devel, p-cpe:/a:centos:centos:kernel-pae-devel, p-cpe:/a:centos:centos:kernel-xen-devel
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/24/2009
Vulnerability Publication Date: 8/14/2009
Exploitable With
CANVAS (CANVAS)
Core Impact
Metasploit (Linux Kernel Sendpage Local Privilege Escalation)
Reference Information
CVE: CVE-2009-2692, CVE-2009-2698
BID: 36038