SB2022042580 - SUSE update for xen
Published: April 25, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 secuirty vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2021-26401)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application within LFENCE/JMP. A local user can gain unauthorized access to sensitive information on the system.
2) Information disclosure (CVE-ID: CVE-2022-0001)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to non-transparent sharing of branch predictor selectors between contexts. A local user can gain unauthorized access to sensitive information on the system.
3) Information disclosure (CVE-ID: CVE-2022-0002)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to non-transparent sharing of branch predictor within a context. A local user can gain unauthorized access to sensitive information on the system.
4) Memory leak (CVE-ID: CVE-2022-26356)
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due to racy interactions between dirty vram tracking and paging log dirty hypercalls. A local user can force the application to leak memory and perform denial of service attack.
5) Race condition (CVE-ID: CVE-2022-26357)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the VT-d domain ID cleanup. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
6) Resource exhaustion (CVE-ID: CVE-2022-26358)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
7) Resource exhaustion (CVE-ID: CVE-2022-26359)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
8) Resource exhaustion (CVE-ID: CVE-2022-26360)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
9) Resource exhaustion (CVE-ID: CVE-2022-26361)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.