Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-34787.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-34787
Upstream
Published
2022-12-14T21:15:10Z
Modified
2026-04-01T05:11:42.111889Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
Summary
CVE-2022-2601 affecting package grub2 for versions less than 2.06-14
Details

A buffer overflow was found in grubfontconstructglyph(). A malicious crafted pf2 font can lead to an overflow when calculating the maxglyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.

References

Affected packages

Azure Linux:3 / grub2

Package

Name
grub2
Purl
pkg:rpm/azure-linux/grub2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.06-14

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-34787.json"