Description

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.

Related CPE's

a

cpp-peglib_project

cpp-peglib

Vulnerable

References

https://github.com/yhirose/cpp-peglib/commit/0061f393de54cf0326621c079dc2988336d1ebb3

PatchThird Party Advisory

https://github.com/yhirose/cpp-peglib/issues/121

ExploitThird Party Advisory

https://github.com/yhirose/cpp-peglib/commit/0061f393de54cf0326621c079dc2988336d1ebb3

PatchThird Party Advisory

https://github.com/yhirose/cpp-peglib/issues/121

ExploitThird Party Advisory

Weaknesses

[email protected]

Primary
CWE-476

CVSS impact metrics

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.5 · Medium

Information

Source identifier

[email protected]

Vulnerability status

Modified

Published

2021-04-21T18:15:08.237Z

5 years ago

Last modified

2026-06-17T03:05:05.270Z

3 months ago