Buffer overflow in Firefox ESR - CVE-2019-11709

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Main Vulnerability Database Vulnerabilities #VU33030

Buffer overflow in Firefox ESR - CVE-2019-11709

Published: July 23, 2019 / Updated: August 3, 2020


Vulnerability identifier: #VU33030
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-11709
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Mozilla developers and community members reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.


Affected software

Firefox ESR
Gentoo Linux
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64
Slackware Linux
Opensuse
Secure Remote Services (SRS) Virtual Edition
SUSE Package Hub for SUSE Linux Enterprise
firefox-esr (Alpine package)
firefox (Red Hat package)
thunderbird (Red Hat package)
Dell EMC Unity VSA Operating Environment (OE)
Dell EMC Unity XT Operating Environment (OE)
Dell EMC Unity Operating Environment (OE)

How to mitigate CVE-2019-11709

Install update from vendor's website.

Firefox ESR - update to 60.8.0
Secure Remote Services (SRS) Virtual Edition - update to 3.46.00.04
firefox-esr (Alpine package) - addressed in versions 60.8.0-r0, 68.0.2-r0
Dell EMC Unity VSA Operating Environment (OE) - update to 5.0.2.0.5.009
Dell EMC Unity XT Operating Environment (OE) - update to 5.0.2.0.5.009
Dell EMC Unity Operating Environment (OE) - update to 5.0.2.0.5.009
firefox (Red Hat package) - addressed in versions 60.8.0-1.el6_10, 60.8.0-1.el7_6, 60.8.0-1.el8_0
thunderbird (Red Hat package) - addressed in versions 60.8.0-1.el6_10, 60.8.0-1.el7_6, 60.8.0-1.el8_0

External References

Related Security Bulletins