CVE-2019-3902
Published: 22 April 2019
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.
From the Ubuntu security team
It was discovered that Mercurial mishandled symlinks in subrepositories. An attacker could use this vulnerability to write arbitrary files to the target's filesystem.
Priority
Medium
CVSS 3 base score: 5.9
Status
| Package | Release | Status |
|---|---|---|
|
mercurial Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.9-1)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(4.8.2-1ubuntu4)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(4.8.2-1ubuntu4)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(end of standard support, was needed)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|