Vulnerability DatabaseCVE-2019-3902
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CVE-2019-3902
April 22, 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.
Affected Packages
mercurial (PYTHON):
Affected version(s) >=0.8.1 <4.9
Fix Suggestion:
Update to version 4.9
Related Resources (9)
https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2019-188.yaml
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902
https://access.redhat.com/security/cve/CVE-2019-3902
https://usn.ubuntu.com/4086-1/
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
https://nvd.nist.gov/vuln/detail/CVE-2019-3902
https://lists.debian.org/debian-lts-announce/2019/04/msg00024.html
https://usn.ubuntu.com/4086-1
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CVSS v4
Base Score:
5.9
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.1
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
CVSS v2
Base Score:
5.8
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Weakness Type (CWE)
Improper Link Resolution Before File Access ('Link Following')
CWE-59
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22
EPSS
Base Score:
0.53