CVE-2020-36323
High
Published: 14 April 2021
Published
14 April 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS Score
0.0101
77.5th percentile
Risk Priority
17
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2020-36323 is a high-severity Use of Externally-Controlled Format String (CWE-134) vulnerability in Fedoraproject Fedora. Its CVSS base score is 8.2 (High).
Operationally, ranked in the top 22.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-23862
Vulnerability details
In the standard library in Rust before 1.52.0, there is an optimization for joining strings that can cause uninitialized bytes to be exposed (or the program to crash) if the borrowed string changes after its length is checked.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
rust-lang
rust
≤ 1.52.0
fedoraproject
fedora
32, 33, 34
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.