Out-of-bounds Write Affecting json-c-doc package, versions <0:0.11-7.8.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.9% (79th percentile)

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  • Snyk IDSNYK-AMZN201803-JSONCDOC-1721986
  • published27 Sept 2021
  • disclosed9 May 2020

Introduced: 9 May 2020

CVE-2020-12762  (opens in a new tab)
CWE-787  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 json-c-doc to version 0:0.11-7.8.amzn1 or higher.
This issue was patched in ALAS-2020-1381.

NVD Description

Note: Versions mentioned in the description apply only to the upstream json-c-doc package and not the json-c-doc package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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