Vulnerability · Published Oct 16, 2020 · Assigned by mitre
CVE-2020-27173
High 7.5
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.5%top 25.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In vm-superio before 0.1.1, the serial console FIFO can grow to unlimited memory usage when data is sent to the input source (i.e., standard input). This behavior cannot be reproduced from the guest side. When no rate limiting is in place, the host can be subject to memory pressure, impacting all other VMs running on the same host.
Affected products (as reported)
References
- https://github.com/rust-vmm/vm-superio/issues/17 x_refsource_MISC
- https://github.com/rust-vmm/vm-superio/pull/19 x_refsource_MISC