CVE-2020-36323

moderate-risk
Published 2021-04-14

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.

Do I need to act?

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0.70% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.2/10 High
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

40
/ 100
moderate-risk
Severity 28/34 · Critical
Exploitability 2/34 · Minimal
Exposure 10/34 · Low