Riskcovery

CVE-2021-28688

State
Published
Severity
Not scored
Published
Apr 6, 2021
Updated
Aug 3, 2024
Reserved
Mar 18, 2021

Read the record on cve.org

Description

The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • before 4.12Unknown
  • 3.11 to before unspecifiedAffected
  • next of 4.3 to before unspecifiedNot affected
LinuxLinux
  • 5.11.1Affected
LinuxLinux
  • 5.12-rcAffected
LinuxLinux
  • 5.10.18Affected
LinuxLinux
  • before 4.12Unknown
  • 4.4 to before unspecifiedUnknown
  • next of 5.9 to before unspecifiedNot affected

References

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