CVE-2021-29939

Public Exploit

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.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.77% Top 30%
Vendor Advisory rustsec.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://rustsec.org/advisories/RUSTSEC-2021-0048.html exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-29939?
CVE-2021-29939 has been scored as a high severity vulnerability.
How to fix CVE-2021-29939?
To fix CVE-2021-29939, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29939 being actively exploited in the wild?
It is possible that CVE-2021-29939 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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