Vulnerability CVE-2019-3902
Published: 2019-04-22

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.

Type:

CWE-59

 (Improper Link Resolution Before File Access ('Link Following'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial
Affected software
Redhat -> Enterprise linux 
Mercurial -> Mercurial 
Debian -> Debian linux 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902
https://lists.debian.org/debian-lts-announce/2019/04/msg00024.html
https://usn.ubuntu.com/4086-1/
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29
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