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virtuozzoVirtuozzoVZA-2018-077
HistoryOct 26, 2018 - 12:00 a.m.

Important kernel security update: CVE-2018-18559; Virtuozzo ReadyKernel patch 64.0 for Virtuozzo 7.0.4 to 7.0.8 HF1

2018-10-2600:00:00
help.virtuozzo.com
10

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.3%

JSON

The cumulative Virtuozzo ReadyKernel patch was updated with a security fix. The patch applies to all supported Virtuozzo kernels.
Vulnerability id: CVE-2018-18559
It was discovered that a race condition between packet_do_bind() and packet_notifier() in the implementation of AF_PACKET could lead to use-after-free. An unprivileged user on the host or in a container could exploit this to crash the kernel or, potentially, to escalate their privileges in the system.

OSVersionArchitecturePackageVersionFilename
Virtuozzo7.0x86_64readykernel-patch-30.10< 64.0-1.vl7readykernel-patch-30.10-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-30.15< 64.0-1.vl7readykernel-patch-30.15-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-33.22< 64.0-1.vl7readykernel-patch-33.22-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-37.30< 64.0-1.vl7readykernel-patch-37.30-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-40.4< 64.0-1.vl7readykernel-patch-40.4-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-43.10< 64.0-1.vl7readykernel-patch-43.10-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-46.7< 64.0-1.vl7readykernel-patch-46.7-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-48.2< 64.0-1.vl7readykernel-patch-48.2-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-63.3< 64.0-1.vl7readykernel-patch-63.3-64.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-64.7< 64.0-1.vl7readykernel-patch-64.7-64.0-1.vl7.x86_64.rpm

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8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.3%

JSON
Related for VZA-2018-077
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