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CVE-2022-33742

UNKNOWN
Published 2022-07-05T12:50:39
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No CVSS data available

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).

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Linux

Linux

Affected Versions:

consult Xen advisory XSA-403
Xen

xen

Affected Versions:

consult Xen advisory XSA-403

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-5mhw-r3wg-5qv3

Advisory Details

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).

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-33742
WEB https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q
WEB https://www.debian.org/security/2022/dsa-5191
WEB https://xenbits.xenproject.org/xsa/advisory-403.txt
WEB http://www.openwall.com/lists/oss-security/2022/07/05/6
WEB http://xenbits.xen.org/xsa/advisory-403.html

Advisory provided by GitHub Security Advisory Database. Published: July 6, 2022, Modified: July 16, 2022

References

https://xenbits.xenproject.org/xsa/advisory-403.txt
http://xenbits.xen.org/xsa/advisory-403.html
http://www.openwall.com/lists/oss-security/2022/07/05/6
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://www.debian.org/security/2022/dsa-5191
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
Published: 2022-07-05T12:50:39
Last Modified: 2024-08-03T08:09:22.683Z
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