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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2022-07-06T15:06:43
Updated: 2024-08-03T17:01:08.303Z
Reserved: 2021-08-10T00:00:00
Link: CVE-2021-3696
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2022-07-06T16:15:08.270
Modified: 2023-09-13T16:15:41.777
Link: CVE-2021-3696
Redhat