| Description: | Description:
The remote host is missing updates announced in
advisory RHSA-2010:0474.
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security fixes:
* a NULL pointer dereference flaw was found in the Linux kernel NFSv4
implementation. Several of the NFSv4 file locking functions failed to check
whether a file had been opened on the server before performing locking
operations on it. A local, unprivileged user on a system with an NFSv4
share mounted could possibly use this flaw to cause a kernel panic (denial
of service) or escalate their privileges. (CVE-2009-3726, Important)
* a flaw was found in the sctp_process_unk_param() function in the Linux
kernel Stream Control Transmission Protocol (SCTP) implementation. A remote
attacker could send a specially-crafted SCTP packet to an SCTP listening
port on a target system, causing a kernel panic (denial of service).
(CVE-2010-1173, Important)
* a race condition between finding a keyring by name and destroying a freed
keyring was found in the Linux kernel key management facility. A local,
unprivileged user could use this flaw to cause a kernel panic (denial of
service) or escalate their privileges. (CVE-2010-1437, Important)
Red Hat would like to thank Simon Vallet for responsibly reporting
CVE-2009-3726
and Jukka Taimisto and Olli Jarva of Codenomicon Ltd, Nokia
Siemens Networks, and Wind River on behalf of their customer, for
responsibly reporting CVE-2010-1173.
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:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date
http://rhn.redhat.com/errata/RHSA-2010-0474.html
http://www.redhat.com/security/updates/classification/#important
http://kbase.redhat.com/faq/docs/DOC-31052
Risk factor : High
CVSS Score:
7.8
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