CVE-2019-11736

Priority
Description
The Mozilla Maintenance Service does not guard against files being
hardlinked to another file in the updates directory, allowing for the
replacement of local files, including the Maintenance Service executable,
which is run with privileged access. Additionally, there was a race
condition during checks for junctions and symbolic links by the Maintenance
Service, allowing for potential local file and directory manipulation to be
undetected in some circumstances. This allows for potential privilege
escalation by a user with unprivileged local access. <br>*Note: These
attacks requires local system access and only affects Windows. Other
operating systems are not affected.*. This vulnerability affects Firefox <
69 and Firefox ESR < 68.1.
Assigned-to
chrisccoulson
Notes
tyhicksmozjs contains a copy of the SpiderMonkey JavaScript engine
Package
Upstream:released (69.0)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (Windows only)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (Windows only)
Ubuntu 19.10 (Eoan Ermine):not-affected (Windows only)
Ubuntu 20.04 (Focal Fossa):not-affected (Windows only)
Package
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):needs-triage
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):needs-triage
Ubuntu 19.10 (Eoan Ermine):needs-triage
Ubuntu 20.04 (Focal Fossa):needs-triage
Package
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):needs-triage
Ubuntu 20.04 (Focal Fossa):needs-triage
More Information

Updated: 2020-01-29 18:57:04 UTC (commit 40f18bf14da5fb50662e1f861ea594a462b207fe)