CVE Vulnerabilities

CVE-2021-39515

NULL Pointer Dereference

Published: Sep 20, 2021 | Modified: Sep 24, 2021
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

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.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Libjpeg Jpeg * 2020021 (including)
Libjpeg Ubuntu trusty *
Libjpeg Ubuntu upstream *
Libjpeg Ubuntu xenial *
Libjpeg-turbo Ubuntu trusty *
Libjpeg6b Ubuntu hirsute *
Libjpeg6b Ubuntu trusty *
Libjpeg6b Ubuntu xenial *
Libjpeg9 Ubuntu hirsute *
Libjpeg9 Ubuntu xenial *

Potential Mitigations

References