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
9.3%
The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to Virtuozzo 7.0 kernels 3.10.0-327.42.0.vz7.18.7 (7.0.1), 3.10.0-327.42.0.vz7.20.18 (7.0.3), 3.10.0-514.26.1.vz7.33.22 (7.0.5), 3.10.0-693.1.1.vz7.37.30 (7.0.6), and 3.10.0-693.11.6.vz7.40.4 (7.0.6 HF3). NOTE: No more patches are planned for kernel 3.10.0-327.47.0.vz7.18.7, support for which ends with this update.
Vulnerability id: CVE-2017-17448
It was discovered that nfnl_cthelper_list structure was accessible to any user with CAP_NET_ADMIN capability in a network namespace. An unprivileged local user could exploit that to affect netfilter conntrack helpers on the host.
Vulnerability id: CVE-2017-17449
It was discovered that a nlmon link inside a child network namespace was not restricted to that namespace. An unprivileged local user could exploit that to monitor system-wide netlink activity.
Vulnerability id: CVE-2017-17450
It was discovered that xt_osf_fingers data structure was accessible from any network namespace. This allowed unprivileged local users to bypass intended access restrictions and modify the system-wide OS fingerprint list used by specific iptables rules.
Vulnerability id: CVE-2017-17807
The KEYS subsystem omitted an access-control check when writing a key to the default keyring of the current task, allowing a local user to bypass security checks for the keyring. This compromised the validity of the keyring for those who relied on it.
Vulnerability id: PSBM-83692
If โdccp_ipv6โ module was loaded on the host, a local unprivileged user could trigger a kernel crash in dccp_write_xmit() or inet_csk_get_port() using a specially crafted sequence of system calls.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Virtuozzo | 7.0 | x86_64 | readykernel-patch-18.7 | <ย 49.0-1.vl7 | readykernel-patch-18.7-49.0-1.vl7.x86_64.rpm |
Virtuozzo | 7.0 | x86_64 | readykernel-patch-20.18 | <ย 49.0-1.vl7 | readykernel-patch-20.18-49.0-1.vl7.x86_64.rpm |
Virtuozzo | 7.0 | x86_64 | readykernel-patch-33.22 | <ย 49.0-1.vl7 | readykernel-patch-33.22-49.0-1.vl7.x86_64.rpm |
Virtuozzo | 7.0 | x86_64 | readykernel-patch-37.30 | <ย 49.0-1.vl7 | readykernel-patch-37.30-49.0-1.vl7.x86_64.rpm |
Virtuozzo | 7.0 | x86_64 | readykernel-patch-40.4 | <ย 49.0-1.vl7 | readykernel-patch-40.4-49.0-1.vl7.x86_64.rpm |
access.redhat.com/security/cve/cve-2017-17448
access.redhat.com/security/cve/cve-2017-17449
access.redhat.com/security/cve/cve-2017-17450
access.redhat.com/security/cve/cve-2017-17807
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=67f93df79aeefc3add4e4b31a752600f834236e2
readykernel.com/patch/Virtuozzo-7/readykernel-patch-18.7-49.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-20.18-49.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-33.22-49.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-37.30-49.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-40.4-49.0-1.vl7/
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
9.3%