VirtuozzoVZA-2018-036Kernel security update: CVE-2018-5803; Virtuozzo ReadyKernel patch 52.0 for Virtuozzo 7.0.6 HF3, 7.0.7, and 7.0.7 HF2
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
28.1%
The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to Virtuozzo 7.0 kernels 3.10.0-693.11.6.vz7.40.4 (7.0.6 HF3), 3.10.0-693.17.1.vz7.43.10 (7.0.7), 3.10.0-693.21.1.vz7.46.7 (7.0.7 HF2).
Vulnerability id: CVE-2018-5803
It was found that _sctp_make_chunk() function did not check if the chunk length for INIT and INIT_ACK packets was within the allowed limits. A local attacker could exploit this to trigger a kernel crash.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Virtuozzo | 7.0 | x86_64 | readykernel-patch-40.4 | < 52.0-2.vl7 | readykernel-patch-40.4-52.0-2.vl7.x86_64.rpm |
| Virtuozzo | 7.0 | x86_64 | readykernel-patch-43.10 | < 52.0-2.vl7 | readykernel-patch-43.10-52.0-2.vl7.x86_64.rpm |
| Virtuozzo | 7.0 | x86_64 | readykernel-patch-46.7 | < 52.0-2.vl7 | readykernel-patch-46.7-52.0-2.vl7.x86_64.rpm |
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
28.1%