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virtuozzoVirtuozzoVZA-2021-004
HistoryJan 27, 2021 - 12:00 a.m.

[Important] [Security] Fix for a vulnerability in sudo, CVE-2021-3156, for Virtuozzo Hybrid Server 7.x and Virtuozzo 6

2021-01-2700:00:00
help.virtuozzo.com
60

7.2 High

CVSS2

Attack Vector

LOCAL

Attack 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

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

0.97 High

EPSS

Percentile

99.7%

JSON

The update fixes the vulnerability in sudo registered as CVE-2021-3156. The new sudo packages are available for Virtuozzo Hybrid Server 7.x and Virtuozzo 6.
Vulnerability id: CVE-2021-3156
A flaw was found in sudo. A heap-based buffer overflow was found in the way sudo parses command line arguments. This flaw is exploitable by any local user who can execute the sudo command (by default, any local user can execute sudo) without authentication. Successful exploitation of this flaw could lead to privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

OSVersionArchitecturePackageVersionFilename
Virtuozzo6.0x86_64//repo.virtuozzo.com/vzlinux/6/x86_64/updates/packages/s/sudo< 1.8.6p3-29.vl6.4http://repo.virtuozzo.com/vzlinux/6/x86_64/updates/Packages/s/sudo-1.8.6p3-29.vl6.4.x86_64.rpm
Virtuozzo6.0x86_64//repo.virtuozzo.com/vzlinux/7/x86_64/os/packages/s/sudo< 1.8.23-10.vl7.1http://repo.virtuozzo.com/vzlinux/7/x86_64/os/Packages/s/sudo-1.8.23-10.vl7.1.x86_64.rpm
Virtuozzo Hybrid Server7.0x86_64//repo.virtuozzo.com/vzlinux/6/x86_64/updates/packages/s/sudo< 1.8.6p3-29.vl6.4http://repo.virtuozzo.com/vzlinux/6/x86_64/updates/Packages/s/sudo-1.8.6p3-29.vl6.4.x86_64.rpm
Virtuozzo Hybrid Server7.0x86_64//repo.virtuozzo.com/vzlinux/7/x86_64/os/packages/s/sudo< 1.8.23-10.vl7.1http://repo.virtuozzo.com/vzlinux/7/x86_64/os/Packages/s/sudo-1.8.23-10.vl7.1.x86_64.rpm
Virtuozzo Hybrid Server7.5x86_64//repo.virtuozzo.com/vzlinux/6/x86_64/updates/packages/s/sudo< 1.8.6p3-29.vl6.4http://repo.virtuozzo.com/vzlinux/6/x86_64/updates/Packages/s/sudo-1.8.6p3-29.vl6.4.x86_64.rpm
Virtuozzo Hybrid Server7.5x86_64//repo.virtuozzo.com/vzlinux/7/x86_64/os/packages/s/sudo< 1.8.23-10.vl7.1http://repo.virtuozzo.com/vzlinux/7/x86_64/os/Packages/s/sudo-1.8.23-10.vl7.1.x86_64.rpm

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7.2 High

CVSS2

Attack Vector

LOCAL

Attack 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

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

0.97 High

EPSS

Percentile

99.7%

JSON
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