High severity · published Apr 11, 2021
CVE-2021-28877
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
7.5
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Rust · Rust-lang
before 1.51.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28877
Issue Tracking
https://github.com/rust-lang/rust/pull/80670
Third Party Advisory
https://security.gentoo.org/glsa/202210-09
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