Important kernel security update: CVE-2017-18344; Virtuozzo ReadyKernel patch 56.0 for all supported Virtuozzo 7.0 kernels

2018-08-0600:00:00

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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

39.7%

JSON

The cumulative Virtuozzo ReadyKernel patch was updated with a security fix. The patch applies to all supported Virtuozzo 7.0 kernels.
Vulnerability id: CVE-2017-18344
The implementation of timer_create system call in the Linux kernel before 4.14.8 doesn’t properly validate the sigevent::sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).

OSVersionArchitecturePackageVersionFilename
Virtuozzo7.0x86_64readykernel-patch-30.10< 56.0-1.vl7readykernel-patch-30.10-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-30.15< 56.0-1.vl7readykernel-patch-30.15-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-33.22< 56.0-1.vl7readykernel-patch-33.22-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-37.30< 56.0-1.vl7readykernel-patch-37.30-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-40.4< 56.0-1.vl7readykernel-patch-40.4-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-43.10< 56.0-1.vl7readykernel-patch-43.10-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-46.7< 56.0-1.vl7readykernel-patch-46.7-56.0-1.vl7.x86_64.rpm
Virtuozzo7.0x86_64readykernel-patch-48.2< 56.0-1.vl7readykernel-patch-48.2-56.0-1.vl7.x86_64.rpm

OS	Version	Architecture	Package	Version	Filename
Virtuozzo	7.0	x86_64	readykernel-patch-30.10	< 56.0-1.vl7	readykernel-patch-30.10-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-30.15	< 56.0-1.vl7	readykernel-patch-30.15-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-33.22	< 56.0-1.vl7	readykernel-patch-33.22-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-37.30	< 56.0-1.vl7	readykernel-patch-37.30-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-40.4	< 56.0-1.vl7	readykernel-patch-40.4-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-43.10	< 56.0-1.vl7	readykernel-patch-43.10-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-46.7	< 56.0-1.vl7	readykernel-patch-46.7-56.0-1.vl7.x86_64.rpm
Virtuozzo	7.0	x86_64	readykernel-patch-48.2	< 56.0-1.vl7	readykernel-patch-48.2-56.0-1.vl7.x86_64.rpm