First published: Thu May 12 2022(Updated: )
Qiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM implementation in the Linux kernel did not properly perform guest page table updates in some situations. An attacker in a guest vm could possibly use this to crash the host OS. (CVE-2022-1158) It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate link layer sessions properly. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1516) It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-28388) It was discovered that the Microchip CAN BUS Analyzer interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-28389) It was discovered that the EMS CAN/USB interface implementation in the Linux kernel contained a double-free vulnerability when handling certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-28390)
Affected Software | Affected Version | How to fix |
---|---|---|
All of | ||
ubuntu/linux-image-5.14.0-1036-oem | <5.14.0-1036.40 | 5.14.0-1036.40 |
Ubuntu Ubuntu | =20.04 | |
All of | ||
ubuntu/linux-image-oem-20.04c | <5.14.0.1036.33 | 5.14.0.1036.33 |
Ubuntu Ubuntu | =20.04 | |
All of | ||
ubuntu/linux-image-oem-20.04b | <5.14.0.1036.33 | 5.14.0.1036.33 |
Ubuntu Ubuntu | =20.04 | |
All of | ||
ubuntu/linux-image-oem-20.04 | <5.14.0.1036.33 | 5.14.0.1036.33 |
Ubuntu Ubuntu | =20.04 |
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(Contains the following vulnerabilities)
The severity of USN-5416-1 is not mentioned in the provided information. Please refer to the official Ubuntu security advisory for more details.
An attacker in a guest vm could possibly use the KVM vulnerability (CVE-2022-1158) to crash the host OS.
The recommended version of linux-image-5.14.0-1036-oem is 5.14.0-1036.40. Please update to this version to fix the vulnerability.
The recommended version of linux-image-oem-20.04c is 5.14.0.1036.33. Please update to this version to fix the vulnerability.
You can find more information about the vulnerabilities in the official Ubuntu security advisories: CVE-2022-1158, CVE-2022-28388, and CVE-2022-28389.