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[USN-1490-1] Linux kernel (Natty backport) vulnerabilities

Posted on 29 June 2012
Ubuntu Security

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Ubuntu Security Notice USN-1490-1
June 29, 2012

linux-lts-backport-natty vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-lts-backport-natty: Linux kernel backport from Natty

Details:

Stephan Mueller reported a flaw in the Linux kernel's dl2k network driver=
's
handling of ioctls. An unprivileged local user could leverage this flaw t=
o
cause a denial of service. (CVE-2012-2313)

Timo Warns reported multiple flaws in the Linux kernel's hfsplus
filesystem. An unprivileged local user could exploit these flaws to gain
root system priviliges. (CVE-2012-2319)

A flaw was discovered in the Linux kernel's NFSv4 (Network file system)
handling of ACLs (access control lists). A remote NFS server (attacker)
could cause a denial of service (OOPS). (CVE-2012-2375)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 10.04 LTS:
linux-image-2.6.38-15-generic 2.6.38-15.61~lucid1
linux-image-2.6.38-15-generic-pae 2.6.38-15.61~lucid1
linux-image-2.6.38-15-server 2.6.38-15.61~lucid1
linux-image-2.6.38-15-virtual 2.6.38-15.61~lucid1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1490-1
CVE-2012-2313, CVE-2012-2319, CVE-2012-2375

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-backport-natty/2.6.38-15=
=2E61~lucid1


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