Vulnerability · Published Apr 1, 2021 · Assigned by mitre
CVE-2021-29939
High 7.3
In plain English
A high-severity security flaw in the rust-stackvector package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.3High
Exploit odds (30 days)1.0%top 36.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in the stackvector crate through 2021-02-19 for Rust. There is an out-of-bounds write in StackVec::extend if size_hint provides certain anomalous data.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | rust-stackvector | 1.0.6-3 | DEBIAN-CVE-2021-29939 |
| Debian:13 | rust-stackvector | 1.0.6-3 | DEBIAN-CVE-2021-29939 |
| Debian:14 | rust-stackvector | 1.0.6-3 | DEBIAN-CVE-2021-29939 |
| Ubuntu:22.04:LTS | rust-stackvector | no fix listed | UBUNTU-CVE-2021-29939 |
| Ubuntu:24.04:LTS | rust-stackvector | no fix listed | UBUNTU-CVE-2021-29939 |
| Ubuntu:25.10 | rust-stackvector | no fix listed | UBUNTU-CVE-2021-29939 |
| Ubuntu:26.04:LTS | rust-stackvector | no fix listed | UBUNTU-CVE-2021-29939 |
| Ubuntu:26.10 | rust-stackvector | no fix listed | UBUNTU-CVE-2021-29939 |
Affected products (as reported)
References
- https://rustsec.org/advisories/RUSTSEC-2021-0048.html x_refsource_MISC