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Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package libfastjson  (opens in a new tab)

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EPSS
1.9% (79th percentile)

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  • Snyk IDSNYK-RHEL9-LIBFASTJSON-12369250
  • published1 Sept 2025
  • disclosed2 May 2020
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Introduced: 2 May 2020

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

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libfastjson package and not the libfastjson package as distributed by RHEL.

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