CVE-2020-23911

MEDIUM

asn1c < 0.9.28 - Denial of Service via NULL Pointer Dereference in _default_error_logger

Title source: llm

Description

An issue was discovered in asn1c through v0.9.28. A NULL pointer dereference exists in the function _default_error_logger() located in asn1fix.c. It allows an attacker to cause Denial of Service.

References (1)

Core 1

Core References

Exploit, Issue Tracking, Patch, Vendor Advisory

https://github.com/vlm/asn1c/issues/394

Scores

CVSS v3 5.5

EPSS 0.0027

EPSS Percentile 19.0%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (1)

asn1c_project/asn1c < 0.9.28

Published Jul 18, 2023

Tracked Since Feb 18, 2026