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CVE-2019-3902

Good to know:

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Date: 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.

Severity Score

Related Resources (10)

https://access.redhat.com/security/cve/CVE-2019-3902
https://usn.ubuntu.com/4086-1/
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902
https://lists.debian.org/debian-lts-announce/2019/04/msg00024.html
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29
https://usn.ubuntu.com/4086-1
https://nvd.nist.gov/vuln/detail/CVE-2019-3902
https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2019-188.yaml
https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html
https://www.mend.io/vulnerability-database/CVE-2019-3902

Severity Score

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

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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