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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-28688 Detail

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.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
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References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Third Party Advisory 
https://xenbits.xenproject.org/xsa/advisory-371.txt Patch  Third Party Advisory 
https://xenbits.xenproject.org/xsa/advisory-371.txt Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-665 Improper Initialization cwe source acceptance level NIST  

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-28688
NVD Published Date:
04/06/2021
NVD Last Modified:
11/21/2024
Source:
Xen Project