Is CVE-2021-28877 in the CISA KEV catalog?

No. CVE-2021-28877 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28877?

CVE-2021-28877 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-28877?

CVE-2021-28877 has an EPSS score of 1.39% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28877?

Upgrade rustc on debian 12 to 1.53.0+dfsg1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-28877

HIGH

7.5

CVSS v3

NVD

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.

CWE-119Buffer Overflow

How to fix

Remediation Available

rustcDebian

Fixed in:1.53.0+dfsg1-1CVE-2021-28877

Rust (GNU)Windows application

Affected:1.51.0Fixed in:1.51.0The Rust Project Developers

Rust (MSVC)Windows application

Affected:1.51.0Fixed in:1.51.0The Rust Project Developers

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.39%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

security.gentoo.org

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.