Buffer overflow in Mozilla Firefox - CVE-2018-18501

Vulnerability identifier: #VU17262

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-18501

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mozilla Firefox
Firefox ESR
Gentoo Linux
Arch Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for Power
Slackware Linux
Opensuse
Fedora
SUSE Package Hub for SUSE Linux Enterprise
thunderbird (Ubuntu package)
firefox-esr (Alpine package)
firefox-esr (Debian package)
thunderbird (Debian package)
firefox
Mozilla Thunderbird
Dell EMC Unity VSA Operating Environment (OE)
Dell EMC Unity Operating Environment (OE)

Install updates from vendor's website.

Mozilla Firefox - update to 65.0
thunderbird (Ubuntu package) - addressed in versions 1:60.5.1+build2-0ubuntu0.14.04.1, 1:60.5.1+build2-0ubuntu0.16.04.1, 1:60.5.1+build2-0ubuntu0.18.04.1, 1:60.5.1+build2-0ubuntu0.18.10.1
Mozilla Thunderbird - update to 60.5
Firefox ESR - update to 60.5.0
firefox-esr (Alpine package) - update to 60.5.0-r0
firefox-esr (Debian package) - update to 60.5.0esr-1~deb9u1
thunderbird (Debian package) - update to 1:60.5.1-1~deb9u1
Dell EMC Unity VSA Operating Environment (OE) - update to 5.0.0.0.5.116
Dell EMC Unity Operating Environment (OE) - update to 5.0.0.0.5.116
firefox - addressed in versions 65.0-1.fc28, 65.0-1.fc29

• https://www.mozilla.org/en-US/security/advisories/mfsa2019-01/

• Multiple vulnerabilities in Mozilla Firefox
• Multiple vulnerabilities in Firefox ESR
• Multiple vulnerabilities in Mozilla Thunderbird
• Slackware Linux update for mozilla-firefox
• Debian update for firefox-esr
• OpenSUSE Linux update for MozillaFirefox
• OpenSUSE Linux update for MozillaFirefox
• Arch Linux update for firefox
• OpenSUSE Linux update for MozillaThunderbird
• Debian update for thunderbird
• Ubuntu update for Thunderbird
• OpenSUSE Linux update for MozillaThunderbird
• OpenSUSE Linux update for MozillaThunderbird
• Gentoo update for Mozilla Firefox
• OpenSUSE Linux update for MozillaFirefox
• Red Hat update for thunderbird
• Red Hat update for thunderbird
• Red Hat update for firefox
• Red Hat update for firefox
• Buffer overflow in firefox-esr (Alpine package)
• Multiple vulnerabilities in Dell EMC Unity Family
• Fedora 29 update for firefox
• Fedora 28 update for firefox