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Link Following Affecting mercurial package, versions <4.0-1+deb9u2

Severity

 Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.23% (62nd percentile)

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  • Snyk ID SNYK-DEBIAN9-MERCURIAL-344216
  • published 20 Apr 2019
  • disclosed 22 Apr 2019
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Introduced: 20 Apr 2019

CVE-2019-3902 Open this link in a new tab
CWE-59 Open this link in a new tab

How to fix?

Upgrade Debian:9 mercurial to version 4.0-1+deb9u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mercurial package and not the mercurial package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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.