CVE-2021-39516

MEDIUM

libjpeg < 2020021 - Denial of Service via NULL Pointer Dereference in HuffmanDecoder::Get()

Title source: llm
STIX 2.1

Description

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function HuffmanDecoder::Get() located in huffmandecoder.hpp. It allows an attacker to cause Denial of Service.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/thorfdbg/libjpeg/issues/42

Scores

CVSS v3 6.5
EPSS 0.0083
EPSS Percentile 52.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (1)
jpeg/libjpeg < 2020021
Published Sep 20, 2021
Tracked Since Feb 18, 2026