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Integer Overflow or Wraparound Affecting json-c package, versions <0:0.13.1-2.el8

medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High
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NVD
7.8 high
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SUSE
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-CENTOS8-JSONC-2147471
  • published 26 Jul 2021
  • disclosed 2 May 2020
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Introduced: 2 May 2020

CVE-2020-12762 Open this link in a new tab
CWE-190 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Centos:8 json-c to version 0:0.13.1-2.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream json-c package and not the json-c package as distributed by Centos:8. See How to fix? for Centos:8 relevant fixed versions and status.

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.