CVE-2019-3902 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902 https://lists.debian.org/debian-lts-announce/2019/04/msg00024.html https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html https://usn.ubuntu.com/4086-1/ https://www.mercurial-scm.org/wiki/WhatsNewMercurial_4.9_.282019-02-01.29

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9