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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-33740 Detail

Description

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2022/07/05/6 Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2022/07/05/6 Mailing List  Patch  Third Party Advisory 
http://xenbits.xen.org/xsa/advisory-403.html Patch  Vendor Advisory 
http://xenbits.xen.org/xsa/advisory-403.html Patch  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/
https://www.debian.org/security/2022/dsa-5191 Third Party Advisory 
https://www.debian.org/security/2022/dsa-5191 Third Party Advisory 
https://xenbits.xenproject.org/xsa/advisory-403.txt Vendor Advisory 
https://xenbits.xenproject.org/xsa/advisory-403.txt Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

13 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-33740
NVD Published Date:
07/05/2022
NVD Last Modified:
11/21/2024
Source:
Xen Project