CVE-2021-39517: Null Pointer Dereference
Published Sep 20, 2021
·Updated
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::ReconstructUnsampled() located in blockbitmaprequester.cpp. It allows an attacker to cause Denial of Service.
Affected Software
1 affected component
jpeg libjpeg<=2020021
Remediation
Patch Available
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
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2021-39517?
CVE-2021-39517 is classified as a Denial of Service vulnerability.
2
How do I fix CVE-2021-39517?
To fix CVE-2021-39517, update libjpeg to a version newer than 2020021.
3
What type of vulnerability is CVE-2021-39517?
CVE-2021-39517 is a NULL pointer dereference vulnerability.
4
What impact does CVE-2021-39517 have on affected systems?
CVE-2021-39517 can cause a Denial of Service, making affected systems unavailable.
5
In which software is CVE-2021-39517 found?
CVE-2021-39517 is found in versions of libjpeg up to and including 2020021.