CVE-2021-28877

Description

In the standard library in Rust before 1.51.0, the Zip implementation calls __iterator_get_unchecked() for the same index more than once when nested. This bug can lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/rust-lang/rust/pull/80670 issue tracking third party advisory patch
https://security.gentoo.org/glsa/202210-09 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-28877?
CVE-2021-28877 has been scored as a high severity vulnerability.
How to fix CVE-2021-28877?
To fix CVE-2021-28877, 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-2021-28877 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-28877 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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