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CVE-2021-29922

Good to know:

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Date: August 6, 2021

library/std/src/net/parser.rs in Rust before 1.53.0 does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses, because of unexpected octal interpretation.

Language: RUST

Severity Score

Related Resources (12)

https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-015.md
https://security-tracker.debian.org/tracker/CVE-2021-29922
https://security.alpinelinux.org/vuln/CVE-2021-29922
https://nvd.nist.gov/vuln/detail/CVE-2021-29922
https://security.gentoo.org/glsa/202210-09
https://doc.rust-lang.org/beta/std/net/struct.Ipv4Addr.html
https://github.com/rust-lang/rust/issues/83648
https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-29922
https://github.com/rust-lang/rust/pull/83652
https://access.redhat.com/security/cve/CVE-2021-29922
https://www.mend.io/vulnerability-database/CVE-2021-29922

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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