Home/CVE/An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequest
CVE

CVE-2021-39519

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequest

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PullQData() located in blockbitmaprequester.cpp It allows an attacker to cause Denial of Service.

MEDIUM · CVSS 6.5 EPSS 0.00239
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
jpeg libjpeg<= 2020021
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/28github.com
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Sep 2021 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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