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
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1991686 | Issue Tracking Third Party Advisory |
https://security.gentoo.org/glsa/202209-12 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20220930-0001/ | Third Party Advisory |
History
No history.
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
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
Redhat Information
No data.
CWE