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CentOS: CESA-2021:3600-01 Critical Bug Fixes and Security Updates

red hat
Calendar Grey August 24, 2009
Dist Redhat Esm H88
Red Hat has issued a critical advisory regarding a significant kernel update that resolves multiple security vulnerabilities and includes various bug fixes for RHEL 5.
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 ...

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

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.

Topics%20covered

Topics Covered

security advisory security issue critical privilege escalation bug fix Red Hat Enterprise Linux system update

References

https://www.cve.org/CVERecord?id=CVE-2009-2692 https://www.cve.org/CVERecord?id=CVE-2009-2698 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: kernel-2.6.18-128.7.1.el5.i686.rpm kernel-PAE-2.6.18-128.7.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-128.7.1.el5.i686.rpm kernel-PAE-devel-2.6.18-128.7.1.el5.i686.rpm kernel-debug-2.6.18-128.7.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-128.7.1.el5.i686.rpm kernel-debug-devel-2.6.18-128.7.1.el5.i686.rpm kernel-debuginfo-2.6.18-128.7.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-128.7.1.el5.i686.rpm kernel-devel-2.6.18-128.7.1.el5.i686.rpm kernel-headers-2.6.18-128.7.1.el5.i386.rpm kernel-xen-2.6.18-128.7.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-128.7.1.el5.i686.rpm kernel-xen-devel-2.6.18-128.7.1.el5.i686.rpm
noarch: kernel-doc-2.6.18-128.7.1.el5.noarch.rpm
x86_64: kernel-2.6.18-128.7.1.el5.x86_64.rpm kernel-debug-2.6.18-128.7.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-128.7.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-128.7.1.el5.x86_64.rpm kernel-devel-2.6.18-128.7.1.el5.x86_64.rpm kernel-headers-2.6.18-128.7.1.el5.x86_64.rpm kernel-xen-2.6.18-128.7.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-128.7.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-128.7.1.el5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2009:1222-02
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:1222.html
Issue date: 2009-08-24

Topic

Updated kernel packages that fix two security issues and a bug are nowavailable for Red Hat Enterprise Linux 5.This update has been rated as having important security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory security issue critical privilege escalation bug fix Red Hat Enterprise Linux system update

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64

Bugs Fixed

515432 - dlm_send socket leak [rhel-5.3.z]

516949 - CVE-2009-2692 kernel: uninit op in SOCKOPS_WRAP() leads to privesc

518034 - CVE-2009-2698 kernel: udp socket NULL ptr dereference

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