Medium severity6.5NVD Advisory· Published Sep 20, 2021· Updated Jun 17, 2026
CVE-2021-39517
CVE-2021-39517
Description
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.
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Affected products
2- libjpeg/libjpegdescription
Patches
Vulnerability mechanics
References
1- github.com/thorfdbg/libjpeg/issues/33nvdExploitIssue TrackingPatchThird Party Advisory
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