Out-of-bounds Write Affecting libfastjson package, versions <1.2304.0-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.17% (39th percentile)

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  • Snyk IDSNYK-ALPINE319-LIBFASTJSON-6106875
  • published8 Dec 2023
  • 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 Alpine:3.19 libfastjson to version 1.2304.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libfastjson package and not the libfastjson package as distributed by Alpine. See How to fix? for Alpine:3.19 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.

CVSS Base Scores

version 3.1