Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : firefox regression (USN-2880-2)

critical Nessus Plugin ID 88637

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Synopsis

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

Description

USN-2880-1 fixed vulnerabilities in Firefox. This update introduced a regression which caused Firefox to crash on startup with some configurations. This update fixes the problem.

We apologize for the inconvenience.

Bob Clary, Christian Holler, Nils Ohlmeier, Gary Kwong, Jesse Ruderman, Carsten Book, Randell Jesup, Nicolas Pierron, Eric Rescorla, Tyson Smith, and Gabor Krizsanits discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1930, CVE-2016-1931)

Gustavo Grieco discovered an out-of-memory crash when loading GIF images in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could exploit this to cause a denial of service.
(CVE-2016-1933)

Aki Helin discovered a buffer overflow when rendering WebGL content in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1935)

It was discovered that a delay was missing when focusing the protocol handler dialog. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to conduct clickjacking attacks.
(CVE-2016-1937)

Hanno Bock discovered that calculations with mp_div and mp_exptmod in NSS produce incorrect results in some circumstances, resulting in cryptographic weaknesses.
(CVE-2016-1938)

Nicholas Hurley discovered that Firefox allows for control characters to be set in cookie names. An attacker could potentially exploit this to conduct cookie injection attacks on some web servers. (CVE-2016-1939)

It was discovered that when certain invalid URLs are pasted in to the addressbar, the addressbar contents may be manipulated to show the location of arbitrary websites. An attacker could potentially exploit this to conduct URL spoofing attacks. (CVE-2016-1942)

Ronald Crane discovered three vulnerabilities through code inspection. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1944, CVE-2016-1945, CVE-2016-1946)

Francois Marier discovered that Application Reputation lookups didn't work correctly, disabling warnings for potentially malicious downloads. An attacker could potentially exploit this by tricking a user in to downloading a malicious file. Other parts of the Safe Browsing feature were unaffected by this. (CVE-2016-1947).

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 firefox package.

See Also

https://usn.ubuntu.com/2880-2/

Plugin Details

Severity: Critical

ID: 88637

File Name: ubuntu_USN-2880-2.nasl

Version: 2.18

Type: local

Agent: unix

Published: 2/9/2016

Updated: 1/19/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

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

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:firefox, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.10

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/8/2016

Vulnerability Publication Date: 1/31/2016

Reference Information

CVE: CVE-2016-1930, CVE-2016-1931, CVE-2016-1933, CVE-2016-1935, CVE-2016-1937, CVE-2016-1938, CVE-2016-1939, CVE-2016-1942, CVE-2016-1944, CVE-2016-1945, CVE-2016-1946, CVE-2016-1947

USN: 2880-2