A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
References
| Link | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1991687 | 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)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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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-2021-3697
Mitre link : CVE-2021-3697
CVE.ORG link : CVE-2021-3697
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
gnu
- grub2
CWE
CWE-787
Out-of-bounds Write