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ubuntucveUbuntu.comUB:CVE-2022-33742
HistoryJul 05, 2022 - 12:00 a.m.

CVE-2022-33742

2022-07-0500:00:00
ubuntu.com
ubuntu.com
21

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

3.6 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

26.5%

JSON

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).

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-194.205UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-128.144UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-48.54UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1142.154UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1020.24UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1086.93UNKNOWN
ubuntu18.04noarchlinux-kvm< 4.15.0-1128.133UNKNOWN
ubuntu20.04noarchlinux-kvm< 5.4.0-1076.81UNKNOWN
ubuntu22.04noarchlinux-kvm< 5.15.0-1018.22UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1020.24~20.04.1UNKNOWN
Rows per page:
1-10 of 621

References

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7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

3.6 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

26.5%

JSON
Related for UB:CVE-2022-33742
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