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CVE-2021-3696
CVE ID
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CVE-2021-3696
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it’s very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
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CVSS V3 Severity and Metrics
General Information
Vendors
- gnu,
- netapp,
- redhat
Products
- codeready linux builder -,
- developer tools 1.0,
- enterprise linux 8.0,
- enterprise linux 8.1,
- enterprise linux 8.4,
- enterprise linux 9.0,
- enterprise linux eus 8.2,
- enterprise linux eus 8.4,
- enterprise linux eus 8.6,
- enterprise linux eus 9.0,
- enterprise linux for power little endian 8.0,
- enterprise linux for power little endian 9.0,
- enterprise linux for power little endian eus 8.2,
- enterprise linux for power little endian eus 8.4,
- enterprise linux for power little endian eus 8.6,
- enterprise linux for power little endian eus 9.0,
- enterprise linux server aus 8.2,
- enterprise linux server aus 8.4,
- enterprise linux server aus 8.6,
- enterprise linux server for power little endian update services for sap solutions 8.1,
- enterprise linux server for power little endian update services for sap solutions 8.2,
- enterprise linux server for power little endian update services for sap solutions 8.4,
- enterprise linux server for power little endian update services for sap solutions 8.6,
- enterprise linux server for power little endian update services for sap solutions 9.0,
- enterprise linux server tus 8.2,
- enterprise linux server tus 8.4,
- enterprise linux server tus 8.6,
- grub2,
- ontap select deploy administration utility -,
- openshift 3.0,
- openshift container platform 4.10,
- openshift container platform 4.6,
- openshift container platform 4.9
References
Miscellaneous
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
