Double Free in Rust-lang Rust
CVE-2021-31162
In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.
Vulnerability class: Double Free
EPSS: 0.029 (85.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Rust-lang Rust
- Fedoraproject Fedora — versions 32, 33, 34
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31162?
- CVE-2021-31162 is a critical-severity vulnerability in Rust-lang Rust, classified under Double Free. CVSS score: 9.8/10. Published 2021-04-14.
- How severe is CVE-2021-31162?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-31162 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.