CVE-2019-3902

Priority
Description
A flaw was found in Mercurial before 4.9. It was possible to use symlinks
and subrepositories to defeat Mercurial's path-checking logic and write
files outside a repository.
Ubuntu-Description
It was discovered that Mercurial mishandled symlinks in subrepositories. An
attacker could use this vulnerability to write arbitrary files to the target's
filesystem.
Notes
Package
Upstream:released (4.9-1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):needed
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 18.04 LTS (Bionic Beaver):needed
Ubuntu 20.04 LTS (Focal Fossa):not-affected (4.8.2-1ubuntu4)
Ubuntu 20.10 (Groovy Gorilla):not-affected (4.8.2-1ubuntu4)
More Information

Updated: 2020-09-09 23:29:48 UTC (commit 81a23a978c4436cd99e1d040e9e73e9146876281)