QID 355395

Date Published: 2023-06-14

QID 355395: Amazon Linux Security Advisory for libfastjson : ALAS2-2023-2079

A flaw was found in json-c. in printbuf_memappend, certain crafted values can overflow the memory allowing an attacker to write past the memory boundary.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
( CVE-2020-12762)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 6.8 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2023-2079 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355395

    CVE-2020-12762 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2079 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2079.html
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