SB2022080261 - RetBleed CPU vulnerability on VELOS BX110 in F5OS-C

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Main Vulnerability Database SB2022080261

SB2022080261 - RetBleed CPU vulnerability on VELOS BX110 in F5OS-C

Published: August 2, 2022

Security Bulletin ID SB2022080261
Severity
Low
Patch available
NO
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2022-29901)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to the way non-transparent sharing of branch predictor targets between contexts. A local user can exploit the vulnerability to gain access to sensitive information.


2) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2022-29900)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a mistrained branch predictions for return instructions. A local user can execute arbitrary speculative code under certain microarchitecture-dependent conditions. The vulnerability was dubbed  RETbleed.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References