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 |
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
Configuration 3 (hide)
| AND |
|
Configuration 4 (hide)
| AND |
|
Configuration 5 (hide)
|
History
13 Sep 2023, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Gnu grub2
|
|
| CPE | cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* |
Information
Published : 2022-07-06 16:15
Updated : 2024-02-28 19:29
NVD link : CVE-2021-3696
Mitre link : CVE-2021-3696
CVE.ORG link : CVE-2021-3696
JSON object : View
Products Affected
redhat
- enterprise_linux
- openshift
- enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
- developer_tools
- codeready_linux_builder
- enterprise_linux_for_power_little_endian_eus
- enterprise_linux_server_aus
- enterprise_linux_eus
- openshift_container_platform
- enterprise_linux_server_tus
- enterprise_linux_for_power_little_endian
netapp
- ontap_select_deploy_administration_utility
gnu
- grub2
CWE
CWE-787
Out-of-bounds Write