CVE-2022-33742

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-33742
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).

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

3.6 /10

CVSS v2.0 : LOW

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:P

Exploitability : 3.9 / Impact : 4.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
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
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/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/
https://www.debian.org/security/2022/dsa-5191 Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-403.txt Vendor 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
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/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/
https://www.debian.org/security/2022/dsa-5191 Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-403.txt Vendor Advisory
Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

Configuration 3 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
History

21 Nov 2024, 07:08

Type Values Removed Values Added
References () 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
References () http://xenbits.xen.org/xsa/advisory-403.html - Patch, Vendor Advisory () http://xenbits.xen.org/xsa/advisory-403.html - Patch, Vendor Advisory
References () 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
References () 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/ -
References () 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/ -
References () https://www.debian.org/security/2022/dsa-5191 - Third Party Advisory () https://www.debian.org/security/2022/dsa-5191 - Third Party Advisory
References () https://xenbits.xenproject.org/xsa/advisory-403.txt - Vendor Advisory () https://xenbits.xenproject.org/xsa/advisory-403.txt - Vendor Advisory

20 Jul 2023, 15:11

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ - Mailing List, Third Party Advisory
References (DEBIAN) https://www.debian.org/security/2022/dsa-5191 - (DEBIAN) https://www.debian.org/security/2022/dsa-5191 - Third Party Advisory
CPE cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*

27 Jul 2022, 11:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2022/dsa-5191 -

23 Jul 2022, 04:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ -

15 Jul 2022, 17:18

Type Values Removed Values Added
CWE CWE-200
CPE cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
References (MLIST) http://www.openwall.com/lists/oss-security/2022/07/05/6 - (MLIST) http://www.openwall.com/lists/oss-security/2022/07/05/6 - Mailing List, Patch, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/ - Mailing List, Third Party Advisory
References (MISC) https://xenbits.xenproject.org/xsa/advisory-403.txt - (MISC) https://xenbits.xenproject.org/xsa/advisory-403.txt - Vendor Advisory
References (CONFIRM) http://xenbits.xen.org/xsa/advisory-403.html - (CONFIRM) http://xenbits.xen.org/xsa/advisory-403.html - Patch, Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 3.6
v3 : 7.1

13 Jul 2022, 04:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/ -

05 Jul 2022, 15:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2022/07/05/6 -
  • (CONFIRM) http://xenbits.xen.org/xsa/advisory-403.html -

05 Jul 2022, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-07-05 13:15

Updated : 2024-11-21 07:08

NVD link : CVE-2022-33742

Mitre link : CVE-2022-33742

CVE.ORG link : CVE-2022-33742

JSON object : View

Products Affected

debian

  • debian_linux

fedoraproject

  • fedora

linux

  • linux_kernel

xen

  • xen
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor