CVSS2
Attack Vector
LOCAL
Attack 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
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
EPSS
Percentile
27.5%
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).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-194.205 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-128.144 | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < 5.15.0-48.54 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1142.154 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1086.93 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1020.24 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < 5.15.0-1020.24~20.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1086.93~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1142.154~16.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1094.100 | UNKNOWN |
www.openwall.com/lists/oss-security/2022/07/05/6
xenbits.xen.org/xsa/advisory-403.html
launchpad.net/bugs/cve/CVE-2022-33742
nvd.nist.gov/vuln/detail/CVE-2022-33742
security-tracker.debian.org/tracker/CVE-2022-33742
ubuntu.com/security/notices/USN-5623-1
ubuntu.com/security/notices/USN-5624-1
ubuntu.com/security/notices/USN-5633-1
ubuntu.com/security/notices/USN-5635-1
ubuntu.com/security/notices/USN-5640-1
ubuntu.com/security/notices/USN-5644-1
ubuntu.com/security/notices/USN-5648-1
ubuntu.com/security/notices/USN-5655-1
ubuntu.com/security/notices/USN-5668-1
ubuntu.com/security/notices/USN-5669-1
ubuntu.com/security/notices/USN-5669-2
ubuntu.com/security/notices/USN-5677-1
ubuntu.com/security/notices/USN-5678-1
ubuntu.com/security/notices/USN-5679-1
ubuntu.com/security/notices/USN-5682-1
ubuntu.com/security/notices/USN-5683-1
ubuntu.com/security/notices/USN-5684-1
ubuntu.com/security/notices/USN-5687-1
ubuntu.com/security/notices/USN-5695-1
ubuntu.com/security/notices/USN-5706-1
www.cve.org/CVERecord?id=CVE-2022-33742
xenbits.xen.org/xsa/advisory-403.html
xenbits.xenproject.org/xsa/advisory-403.txt
CVSS2
Attack Vector
LOCAL
Attack 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
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
EPSS
Percentile
27.5%