Debian DSA-4287-1 : firefox-esr - security update

High Nessus Plugin ID 117368


The remote Debian host is missing a security-related update.


Several security issues have been found in the Mozilla Firefox web
browser: Multiple memory safety errors and use-after-frees may lead to
the execution of arbitrary code or denial of service.

Debian follows the extended support releases (ESR) of Firefox. Support
for the 52.x series has ended, so starting with this update we're now
following the 60.x releases.

Between 52.x and 60.x, Firefox has undergone significant internal
updates, which makes it incompatible with a number of extensions. For
more information please refer to

In addition, the new Firefox packages require Rust to build. A
compatible Rust toolchain has been backported to Debian stretch, but
is not available for all architectures which previously supported the
purely C++-based Firefox packages. Thus, the new Firefox packages
don't support the armel, armhf, mips, mips64el and mipsel
architectures at this point.


Upgrade the firefox-esr packages.

For the stable distribution (stretch), these problems have been fixed
in version 60.2.0esr-1~deb9u2.

See Also

Plugin Details

Severity: High

ID: 117368

File Name: debian_DSA-4287.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2018/09/10

Modified: 2018/12/07

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:firefox-esr, cpe:/o:debian:debian_linux:9.0

Patch Publication Date: 2018/09/07

Reference Information

CVE: CVE-2018-12376, CVE-2018-12377, CVE-2018-12378

DSA: 4287