CVE-2019-3902 - Improper Link Resolution Before File Access ('Link Following')

Severity

57%

Complexity

86%

Confidentiality

81%

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.

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 3.0 Base Score 5.9. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 5.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:P).

Overview

First reported 5 years ago

2019-04-22 16:29:00

Last updated 5 years ago

2019-08-06 19:15:00

Affected Software

Debian Linux 8.0 (Jessie)

8.0

Red Hat Enterprise Linux (RHEL) 7.0 (7)

7.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902

Issue Tracking, Vendor Advisory

[debian-lts-announce] 20190425 [SECURITY] [DLA 1764-1] mercurial security update

Third Party Advisory

USN-4086-1

https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29

Third Party Advisory

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.