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.
References
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2022-07-06T15:06:43

Updated: 2022-09-30T15:06:17

Reserved: 2021-08-10T00:00:00


Link: CVE-2021-3696

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2022-07-06T16:15:08.270

Modified: 2023-09-13T16:15:41.777


Link: CVE-2021-3696

JSON object: View

cve-icon Redhat Information

No data.

CWE