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RockyLinux 8 : libfastjson (RLSA-2023:6976)

high Nessus Plugin ID 323103

Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2023:6976 advisory.

 * json-c, libfastjson: integer overflow and out-of-bounds write via a large JSON file (CVE-2020-12762)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libfastjson, libfastjson-debuginfo and / or libfastjson-debugsource packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=1835253

https://errata.rockylinux.org/RLSA-2023:6976

Plugin Details

Severity: High

ID: 323103

File Name: rocky_linux_RLSA-2023-6976.nasl

Version: 1.1

Type: Local

Published: 6/26/2026

Updated: 6/26/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-12762

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:libfastjson-debugsource, p-cpe:/a:rocky:linux:libfastjson, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:libfastjson-debuginfo

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/27/2026

Vulnerability Publication Date: 5/9/2020

Reference Information

CVE: CVE-2020-12762