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CVE-2022-33740 Details

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

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html CVEMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/ CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ CVE
https://www.debian.org/security/2022/dsa-5191 CVEThird Party Advisory
https://xenbits.xenproject.org/xsa/advisory-403.txt CVEVendor Advisory

see all 14 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-212Improper Removal of Sensitive Information Before Storage or Transfer[email protected]

Affected Products

ProductVersions
fedoraproject fedora
35
36

CPE

  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
10.0
11.0

CPE

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
linux linux kernel
>= 2.6.13, < 4.9.322
>= 4.14, < 4.14.287
>= 4.19, < 4.19.251
>= 5.4, < 5.4.204
>= 5.10, < 5.10.129

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:2.6.12:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*

Remediation

  • No remediation found in references.
xen xen
All versions

CPE

  • cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

14 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-33740
NVD Published Date:
Jul 5, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2022-33740 Details - Not Deferred