Ubuntu 11.04 : gsettings-desktop-schemas regression (USN-1400-5)

high Nessus Plugin ID 58807

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Synopsis

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

Description

USN-1400-1 fixed vulnerabilities in Firefox. Firefox 11 started using GSettings to access the system proxy settings. If there is a GSettings proxy settings schema, Firefox will consume it. The GSettings proxy settings schema that was shipped by default was unused by other applications and broke Firefox's ability to use system proxy settings.
This update removes the unused schema. We apologize for the inconvenience.

Soroush Dalili discovered that Firefox did not adequately protect against dropping JavaScript links onto a frame. A remote attacker could, through cross-site scripting (XSS), exploit this to modify the contents or steal confidential data. (CVE-2012-0455)

Atte Kettunen discovered a use-after-free vulnerability in Firefox's handling of SVG animations. An attacker could potentially exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2012-0457)

Atte Kettunen discovered an out of bounds read vulnerability in Firefox's handling of SVG Filters. An attacker could potentially exploit this to make data from the user's memory accessible to the page content. (CVE-2012-0456)

Mike Brooks discovered that using carriage return line feed (CRLF) injection, one could introduce a new Content Security Policy (CSP) rule which allows for cross-site scripting (XSS) on sites with a separate header injection vulnerability. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain.
(CVE-2012-0451)

Mariusz Mlynski discovered that the Home button accepted JavaScript links to set the browser Home page. An attacker could use this vulnerability to get the script URL loaded in the privileged about:sessionrestore context. (CVE-2012-0458)

Daniel Glazman discovered that the Cascading Style Sheets (CSS) implementation is vulnerable to crashing due to modification of a keyframe followed by access to the cssText of the keyframe. If the user were tricked into opening a specially crafted web page, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-0459)

Matt Brubeck discovered that Firefox did not properly restrict access to the window.fullScreen object. If the user were tricked into opening a specially crafted web page, an attacker could potentially use this vulnerability to spoof the user interface. (CVE-2012-0460)

Bob Clary, Christian Holler, Jesse Ruderman, Michael Bebenita, David Anderson, Jeff Walden, Vincenzo Iozzo, and Willem Pinckaers discovered memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-0461, CVE-2012-0462, CVE-2012-0464).

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 gsettings-desktop-schemas package.

Plugin Details

Severity: High

ID: 58807

File Name: ubuntu_USN-1400-5.nasl

Version: 1.9

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 4/20/2012

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:11.04, p-cpe:/a:canonical:ubuntu_linux:gsettings-desktop-schemas

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/20/2012

Vulnerability Publication Date: 3/14/2012

Reference Information

CVE: CVE-2012-0451, CVE-2012-0455, CVE-2012-0456, CVE-2012-0457, CVE-2012-0458, CVE-2012-0459, CVE-2012-0460, CVE-2012-0461, CVE-2012-0462, CVE-2012-0464

BID: 52456, 52457, 52458, 52459, 52460, 52461, 52463, 52464, 52465, 52467

USN: 1400-5

Detections

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