CVE-2022-42288: nvidia dgx_a100_firmware Observable Timing Discrepancy

Vulnerability summary

CVE-2022-42288 is a medium (CVSS 5.3) Observable Timing Discrepancy vulnerability in nvidia dgx_a100_firmware. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.3% of scored vulnerabilities.

Timeline

1. 13-01-2023
   PublishedVulnerability first disclosed.
2. 07-04-2025
   Last modifiedVulnerability information updated.

Description

NVIDIA BMC contains a vulnerability in IPMI handler, where an unauthorized attacker can use certain oracles to guess a valid BMC username, which may lead to an information disclosure.

• CWE-208Observable Timing DiscrepancyTwo separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
• CWE-203Observable DiscrepancyThe product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.