CVE Vulnerabilities

CVE-2020-23914

NULL Pointer Dereference

Published: Apr 21, 2021 | Modified: Apr 26, 2021
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Cpp-peglib Cpp-peglib_project * 0.1.12 (including)
Retroarch Ubuntu kinetic *
Retroarch Ubuntu lunar *
Retroarch Ubuntu mantic *
Salmon Ubuntu esm-apps/jammy *
Salmon Ubuntu jammy *
Salmon Ubuntu kinetic *
Salmon Ubuntu lunar *
Salmon Ubuntu mantic *

Potential Mitigations

References