Out-of-bounds Write Affecting json-c-devel package, versions <0:0.13.1-2.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.9% (79th percentile)

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  • Snyk IDSNYK-RHEL8-JSONCDEVEL-4149586
  • published26 Jul 2021
  • disclosed2 May 2020

Introduced: 2 May 2020

CVE-2020-12762  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 json-c-devel to version 0:0.13.1-2.el8 or higher.
This issue was patched in RHSA-2021:4382.

NVD Description

Note: Versions mentioned in the description apply only to the upstream json-c-devel package and not the json-c-devel package as distributed by RHEL. See How to fix? for RHEL: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.

References

CVSS Base Scores

version 3.1