AZL-34785
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-34785.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-34785
- Upstream
- Published
- 2022-07-06T16:15:08Z
- Modified
- 2026-04-21T04:27:25.094487Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- CVE-2021-3697 affecting package grub2 for versions less than 2.06-14
- Details
-
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