Mercurial up to 4.8 Subrepository Symlink privilege escalation

A vulnerability, which was classified as critical, was found in Mercurial up to 4.8. Affected is a function of the component Subrepository Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability (Symlink). CWE is classifying the issue as CWE-269. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 04/22/2019 as bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2019-3902 since 01/03/2019. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.9 eliminates this vulnerability.

Name

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.3
VulDB Vector: ?
VulDB Reliability: ?

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Class: Privilege escalation / Symlink (CWE-269)
Local: Yes
Remote: No

Availability: ?
Status: Not defined

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Current Price Estimation: ?

Threat Intelligenceinfoedit

Threat: ?
Adversaries: ?
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Remediation: ?Recommended: Upgrade
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Upgrade: Mercurial 4.9

01/03/2019 CVE assigned
04/22/2019 +109 days Advisory disclosed
04/23/2019 +1 days VulDB entry created
04/23/2019 +0 days VulDB last updateAdvisory: bugzilla.redhat.com

CVE: CVE-2019-3902 (?)

Created: 04/23/2019 09:06 AM
Complete: ?

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