Home/CVE/In the standard library in Rust before 1.51.0, the Zip implementation calls __iterator_get_unchecked() for the same inde
CVE

CVE-2021-28877

In the standard library in Rust before 1.51.0, the Zip implementation calls __iterator_get_unchecked() for the same inde

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.

HIGH · CVSS 7.5 EPSS 0.00274
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

1
rust-lang rust< 1.51.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Apr 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

3
msrcCVE-2021-28877
rhsaRHSA-2021:3042Moderate
rhsaRHSA-2021:3063Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/rust-lang/rust/pull/80670Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202210-09Third Party Advisory
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