CVE-2021-45707

Description

An issue was discovered in the nix crate 0.16.0 and later before 0.20.2, 0.21.x before 0.21.2, and 0.22.x before 0.22.2 for Rust. unistd::getgrouplist has an out-of-bounds write if a user is in more than 16 /etc/groups groups.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.49%
Third-Party Advisory github.com Third-Party Advisory githubusercontent.com Third-Party Advisory rustsec.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://rustsec.org/advisories/RUSTSEC-2021-0119.html issue tracking third party advisory
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/nix/RUSTSEC-2021-0119.md third party advisory
https://github.com/advisories/GHSA-wgrg-5h56-jg27 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-45707?
CVE-2021-45707 has been scored as a critical severity vulnerability.
How to fix CVE-2021-45707?
To fix CVE-2021-45707, 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-2021-45707 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-45707 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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