Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1269-1)

high Nessus Plugin ID 56943

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Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. (CVE-2011-2491)

Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2496)

It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. (CVE-2011-2517)

Ben Pfaff discovered that Classless Queuing Disciplines (qdiscs) were being incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2525).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected linux-image-2.6-ec2 package.

See Also

https://usn.ubuntu.com/1269-1/

Plugin Details

Severity: High

ID: 56943

File Name: ubuntu_USN-1269-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 11/26/2011

Updated: 9/19/2019

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-ec2, cpe:/o:canonical:ubuntu_linux:10.04:-:lts

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/21/2011

Vulnerability Publication Date: 2/1/2012

Reference Information

CVE: CVE-2011-2491, CVE-2011-2496, CVE-2011-2517, CVE-2011-2525

BID: 48641

USN: 1269-1