Vulnerability · Published Oct 4, 2023 · Assigned by freebsd
CVE-2023-5370arm64 boot CPUs may lack speculative execution protections
Medium 5.5
In plain English
A medium-severity security flaw in FreeBSD from FreeBSD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 89.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
On CPU 0 the check for the SMCCC workaround is called before SMCCC support has been initialized. This resulted in no speculative execution workarounds being installed on CPU 0.
Affected products (as reported)
Weakness: CWE-665