CVE-2021-3696 - CERT CVE
ID CVE-2021-3696
Sažetak 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.
Reference
CVSS
Base: 6.9
Impact: 10.0
Exploitability:3.4
Pristup
VektorSloženostAutentikacija
LOCAL MEDIUM NONE
Impact
PovjerljivostCjelovitostDostupnost
COMPLETE COMPLETE COMPLETE
CVSS vektor AV:L/AC:M/Au:N/C:C/I:C/A:C
Zadnje važnije ažuriranje 13-09-2023 - 16:15
Objavljeno 06-07-2022 - 16:15