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virtuozzoVirtuozzoVZA-2023-036
HistoryNov 07, 2023 - 12:00 a.m.

[Important] [Security] Virtuozzo ReadyKernel Patch 163.1 for Virtuozzo Hybrid Server 7.5

2023-11-0700:00:00
docs.virtuozzo.com
26
virtuozzo
readykernel
patch
security
unix
local sockets
hfsc
packet scheduler
vulnerability
cve-2023-4622
cve-2023-4623
cve-2023-32233

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.1

Confidence

Low

EPSS

0

Percentile

5.1%

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7.5.
Vulnerability id: CVE-2023-4622
[3.10.0-1160.53.1.vz7.185.3 to 3.10.0-1160.90.1.vz7.200.7] Null pointer dereference in Unix local sockets during sendfile().

Vulnerability id: CVE-2023-4623
[3.10.0-1160.53.1.vz7.185.3 to 3.10.0-1160.90.1.vz7.200.7] Invalid memory access in the HFSC packet scheduler.

Vulnerability id: CVE-2023-32233
[3.10.0-1160.53.1.vz7.185.3 to 3.10.0-1160.90.1.vz7.200.7] Use-after-free if modifying and deleting an anonymous set in the same nftables transaction.

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.1

Confidence

Low

EPSS

0

Percentile

5.1%