VirtuozzoVZA-2017-099Important kernel security update: CVE-2017-15649; Virtuozzo ReadyKernel patch 36.1 for Virtuozzo 7.0.0, 7.0.1, and 7.0.3
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
0.4%
The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to Virtuozzo kernels 3.10.0-327.18.2.vz7.15.2 (Virtuozzo 7.0.0), 3.10.0-327.36.1.vz7.18.7 (Virtuozzo 7.0.1), 3.10.0-327.36.1.vz7.20.18 (Virtuozzo 7.0.3).
Vulnerability id: CVE-2017-15649
It was found that fanout_add() in ‘net/packet/af_packet.c’ in the Linux kernel, before version 4.13.6, allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free bug.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Virtuozzo | 7.0 | x86_64 | readykernel-patch-15.2 | < 36.1-1.vl7 | readykernel-patch-15.2-36.1-1.vl7.x86_64.rpm |
| Virtuozzo | 7.0 | x86_64 | readykernel-patch-18.7 | < 36.1-1.vl7 | readykernel-patch-18.7-36.1-1.vl7.x86_64.rpm |
| Virtuozzo | 7.0 | x86_64 | readykernel-patch-20.18 | < 36.1-1.vl7 | readykernel-patch-20.18-36.1-1.vl7.x86_64.rpm |
Related
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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.0004 Low
EPSS
Percentile
0.4%