Vulnerabilities > CVE-2021-39520 - NULL Pointer Dereference vulnerability in Jpeg Libjpeg 1.63/1.66/20220615
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PushReconstructedData() located in blockbitmaprequester.cpp. It allows an attacker to cause Denial of Service.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |