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
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
EPSS
Percentile
57.6%
The cumulative Virtuozzo ReadyKernel patch was updated with a security fix. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7 and Virtuozzo Hybrid Infrastructure.
Vulnerability id: CVE-2021-33909
[3.10.0-1062.4.2.vz7.116.7 to 3.10.0-1160.21.1.vz7.174.13] size_t-to-int conversion vulnerability in the filesystem layer. It was discovered that the implementation of seq_file files in the Linux kernel contained an error related to integer conversion (size_t to a signed integer). A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code.
readykernel.com/patch/Virtuozzo-7/readykernel-patch-116.7-130.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-131.10-130.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-151.14-130.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-158.8-130.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-163.46-130.0-1.vl7/
readykernel.com/patch/Virtuozzo-7/readykernel-patch-174.13-130.0-1.vl7/
www.openwall.com/lists/oss-security/2021/07/20/1
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
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
EPSS
Percentile
57.6%