First published: Mon Mar 27 2023(Updated: )
It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-1281) It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. (CVE-2022-2196) Thadeu Cascardo discovered that the io_uring subsystem contained a double- free vulnerability in certain memory allocation error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-1032)
Affected Software | Affected Version | How to fix |
---|---|---|
All of | ||
ubuntu/linux-image-6.0.0-1013-oem | <6.0.0-1013.13 | 6.0.0-1013.13 |
=22.04 | ||
All of | ||
ubuntu/linux-image-oem-22.04b | <6.0.0.1013.13 | 6.0.0.1013.13 |
=22.04 |
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(Contains the following vulnerabilities)
The vulnerability ID for this Linux kernel vulnerability is CVE-2023-1281.
The impact of the CVE-2023-1281 vulnerability is that a local attacker could cause a denial of service (system crash) or possibly execute arbitrary code.
This vulnerability affects Ubuntu version 22.04 with the Linux kernel version 6.0.0-1013.13 or linux-image-oem-22.04b version 6.0.0.1013.13.
The remedy for this vulnerability is to update to Ubuntu version 22.04 with the Linux kernel version 6.0.0-1013.13 or linux-image-oem-22.04b version 6.0.0.1013.13.
You can find more information about this vulnerability on the Ubuntu Security Notices website: [CVE-2022-2196](https://ubuntu.com/security/CVE-2022-2196), [CVE-2023-1032](https://ubuntu.com/security/CVE-2023-1032), [CVE-2023-1281](https://ubuntu.com/security/CVE-2023-1281).