Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6457.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-6457
Upstream
Published
2020-07-30T13:15:10Z
Modified
2026-04-01T05:20:49.045898Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
CVE-2020-14309 affecting package grub2 for versions less than 2.06~rc1-7
Details

There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.

References

Affected packages

Azure Linux:2 / 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~rc1-7

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6457.json"