Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-34789.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-34789
Upstream
Published
2023-07-20T01:15:10Z
Modified
2026-04-01T05:11:41.743494Z
Severity
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
Summary
CVE-2022-28734 affecting package grub2 for versions less than 2.06-14
Details

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.

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-34789.json"