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Out-of-Bounds Write Affecting mercurial package, versions [,4.6.1)

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.17% (55th percentile)
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NVD
7.5 high
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SUSE
5.3 medium
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Red Hat
4.3 medium

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  • Snyk ID SNYK-PYTHON-MERCURIAL-1570183
  • published 27 Aug 2021
  • disclosed 6 Jul 2018
  • credit Unknown
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Introduced: 6 Jul 2018

CVE-2018-13346 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade mercurial to version 4.6.1 or higher.

Overview

mercurial is a distributed SCM tool written in Python.

Affected versions of this package are vulnerable to Out-of-Bounds Write. The mpatch_apply function in mpatch.c in Mercurial before 4.6.1 incorrectly proceeds in cases where the fragment start is past the end of the original data.