USN-2616-1: Linux kernel vulnerabilities

Published May 20, 2015
·
Updated

Alexandre Oliva reported a race condition flaw in the btrfs file system's handling of extended attributes (xattrs). A local attacker could exploit this flaw to bypass ACLs and potentially escalate privileges. (CVE-2014-9710) A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. (CVE-2015-3331) A flaw was discovered in the Linux kernel's IPv4 networking when using TCP fast open to initiate a connection. An unprivileged local user could exploit this flaw to cause a denial of service (system crash). (CVE-2015-3332)

Affected Software

14 affected componentsFixes available
All of the following
ubuntu/linux-image-3.16.0-38-powerpc64-emb<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10
All of the following
ubuntu/linux-image-3.16.0-38-powerpc64-smp<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10
All of the following
ubuntu/linux-image-3.16.0-38-generic<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10
All of the following
ubuntu/linux-image-3.16.0-38-powerpc-smp<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10
All of the following
ubuntu/linux-image-3.16.0-38-generic-lpae<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10
All of the following
ubuntu/linux-image-3.16.0-38-powerpc-e500mc<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10
All of the following
ubuntu/linux-image-3.16.0-38-lowlatency<3.16.0-38.52
3.16.0-38.52
Ubuntu Ubuntu=14.10

Event History

May 20, 2015
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-2616-1?

The severity of USN-2616-1 is classified as high due to the potential for privilege escalation.

2

How do I fix USN-2616-1?

To fix USN-2616-1, you should update to the latest kernel version 3.16.0-38.52 or newer.

3

What products are affected by USN-2616-1?

USN-2616-1 affects various packages in Ubuntu 14.10, including linux-image-3.16.0-38-generic and linux-image-3.16.0-38-powerpc.

4

What is the cause of the vulnerability in USN-2616-1?

The vulnerability in USN-2616-1 is caused by a race condition in the btrfs file system's handling of extended attributes.

5

Can USN-2616-1 be exploited remotely?

USN-2616-1 is a local vulnerability, meaning an attacker would need local access to exploit it.

Contact

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