Integer overflow in Rust-Lang Rust
CVE-2021-28879
In the standard library in Rust before 1.52.0, the Zip implementation can report an incorrect size due to an integer overflow. This bug can lead to a buffer overflow when a consumed Zip iterator is used again.
Vulnerability class: Integer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.024 (83.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Rust-Lang Rust
- Fedoraproject Fedora — versions 32, 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/rust-lang/rust/issues/82282 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/rust-lang/rust/pull/82289 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202210-09 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28879?
- CVE-2021-28879 is a critical-severity vulnerability in Rust-Lang Rust, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2021-04-11.
- How severe is CVE-2021-28879?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-28879 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.