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Integer Overflow or Wraparound Affecting mercurial package, versions [,4.6.1)

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.15% (51st 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-1570420
  • published 27 Aug 2021
  • disclosed 6 Jul 2018
  • credit Unknown
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Introduced: 6 Jul 2018

CVE-2018-13348 Open this link in a new tab
CWE-190 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 Integer Overflow or Wraparound. The mpatch_decode function in mpatch.c in Mercurial mishandles certain situations where there should be at least 12 bytes remaining after the current position in the patch data, but actually are not.