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virtuozzoVirtuozzoVZA-2018-072
HistorySep 28, 2018 - 12:00 a.m.

Important kernel security update: Virtuozzo ReadyKernel patch 62.2 for Virtuozzo 7.0.4 to 7.0.8 HF1

2018-09-2800:00:00
help.virtuozzo.com
27

7.8 High

CVSS3

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

25.6%

JSON

The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to all supported Virtuozzo kernels.
Vulnerability id: CVE-2018-14634
An integer overflow flaw was found in create_elf_tables(). An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system.

Vulnerability id: CVE-2017-1000365
The Linux kernel imposes a size limit on the memory needed to store the arguments and environment variables of a process, 1/4 of the maximum stack size (RLIMIT_STACK). However, the pointers to these data were not taken into account, which allowed attackers to bypass the limit and even exhaust the stack of the process.

OSVersionArchitecturePackageVersionFilename
Virtuozzo7.0x86_64readykernel-patch-30.10< 62.2-1.vl7readykernel-patch-30.10-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-30.15< 62.2-1.vl7readykernel-patch-30.15-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-33.22< 62.2-1.vl7readykernel-patch-33.22-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-37.30< 62.2-1.vl7readykernel-patch-37.30-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-40.4< 62.2-1.vl7readykernel-patch-40.4-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-43.10< 62.2-1.vl7readykernel-patch-43.10-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-46.7< 62.2-1.vl7readykernel-patch-46.7-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-48.2< 62.2-1.vl7readykernel-patch-48.2-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-63.3< 62.2-1.vl7readykernel-patch-63.3-62.2-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-64.7< 62.2-1.vl7readykernel-patch-64.7-62.2-1.vl7.x86_64.rpm

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7.8 High

CVSS3

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

25.6%

JSON
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