QID 198514
Date Published: 2021-09-30
QID 198514: Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5091-1)
The bpf verifier in the linux kernel missed possible mispredicted branches due to type confusion, allowing a side-channel attack.
The tracing subsystem in the linux kernel did not properly keep track of per-cpu ring buffer state.
The kvm implementation for powerpc systems in the linux kernel did not properly validate rtas arguments in some situations.
The virtio console implementation in the linux kernel did not properly validate input lengths in some situations.
The nfsv4 client implementation in the linux kernel did not properly order connection setup operations.
The max-3421 host usb device driver in the linux kernel did not properly handle device removal events.
Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.
an attacker could use this to expose sensitive information.
(cve-2021-33624).
A privileged attacker could use this to cause a denial of service. (
Cve-2021-3679).
An attacker in a guest vm could use this to cause a denial of service (host os crash) or possibly execute arbitrary code.
(cve-2021-37576).
A local attacker could possibly use this to cause a denial of service (system crash) (cve-2021-38160).
An attacker controlling a remote nfs server could use this to cause a denial of service on the client. (
Cve-2021-38199).
A physically proximate attacker could use this to cause a denial of service (system crash) (cve-2021-38204).
- USN-5091-1 -
ubuntu.com/security/notices/USN-5091-1
CVEs related to QID 198514
| Advisory ID | Software | Component | Link |
|---|---|---|---|
| USN-5091-1 | Ubuntu Linux |
|