CVE-2021-39516: Null Pointer Dereference
Published Sep 20, 2021
·Updated
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.
Affected Software
1 affected component
jpeg libjpeg<=2020021
Event History
Sep 20, 2021
CVE Published
via MITRE·03:26 PM
Data Sourced
via MITRE·03:26 PM
Description
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2021-39516?
CVE-2021-39516 has a severity rating that enables attackers to exploit a NULL pointer dereference, leading to denial of service.
2
How do I fix CVE-2021-39516?
To fix CVE-2021-39516, update to a version of libjpeg that is later than 2020021.
3
What vulnerability class does CVE-2021-39516 belong to?
CVE-2021-39516 belongs to the vulnerability class of denial of service due to a NULL pointer dereference.
4
What software is affected by CVE-2021-39516?
CVE-2021-39516 affects versions of libjpeg up to and including 2020021.
5
Can CVE-2021-39516 be exploited remotely?
Yes, CVE-2021-39516 can potentially be exploited remotely by an attacker to trigger a denial of service.