CVE Vulnerability

CVE-2020-23914

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/yhirose/cpp-peglib/issues/121 Exploit Third Party Advisory
https://github.com/yhirose/cpp-peglib/commit/0061f393de54cf0326621c079dc2988336d1ebb3 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:cpp-peglib_project:cpp-peglib:*:*:*:*:*:*:*:*
Information

Published : 2021-04-21 06:15

Updated : 2021-04-26 05:22

NVD link : CVE-2020-23914

Mitre link : CVE-2020-23914

Products Affected
No products.
CWE
CWE-476