CVE-2021-39515

MEDIUM

libjpeg < 2020021 - Denial of Service via NULL Pointer Dereference in SampleInterleavedLSScan::ParseMCU()

Title source: llm

Description

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function SampleInterleavedLSScan::ParseMCU() located in sampleinterleavedlsscan.cpp. 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/37

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