Ubuntu 11.10 : linux vulnerabilities (USN-1720-1)

medium Nessus Plugin ID 64618
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Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

It was discovered that hypervkvpd, which is distributed in the Linux kernel, was not correctly validating the origin on Netlink messages.
An untrusted local user can cause a denial of service of Linux guests in Hyper-V virtualization environments. (CVE-2012-2669)

Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause an information leak. (CVE-2012-4508)

Florian Weimer discovered that hypervkvpd, which is distributed in the Linux kernel, was not correctly validating source addresses of netlink packets. An untrusted local user can cause a denial of service by causing hypervkvpd to exit. (CVE-2012-5532)

Andrew Cooper of Citrix reported a Xen stack corruption in the Linux kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest kernel to crash, or operate erroneously. (CVE-2013-0190).

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 packages.

See Also

https://usn.ubuntu.com/1720-1/

Plugin Details

Severity: Medium

ID: 64618

File Name: ubuntu_USN-1720-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2/13/2013

Updated: 9/19/2019

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.7

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.0-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.0-generic-pae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.0-server, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.0-virtual, cpe:/o:canonical:ubuntu_linux:11.10

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/12/2013

Vulnerability Publication Date: 12/21/2012

Reference Information

CVE: CVE-2012-2669, CVE-2012-4508, CVE-2012-5532, CVE-2013-0190

BID: 56238, 56710, 56734, 57433

USN: 1720-1