Resource exhaustion in regex - CVE-2022-24713
Published: April 5, 2022
Vulnerability identifier: #VU61895
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-24713
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
regex
regex
Software vendor:
Rust Team
Rust Team
Description
The vulnerability allows a remote attacker to perform a denial of service (ReDoS) attack.
The vulnerability exists due regex for Rust does not properly control consumption of internal resources when parsing untrusted input. A remote attacker can pass specially crafted data to the application and perform a regular expression denial of service (ReDoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://github.com/rust-lang/regex/security/advisories/GHSA-m5pq-gvj9-9vr8
- https://github.com/rust-lang/regex/commit/ae70b41d4f46641dbc45c7a4f87954aea356283e
- https://groups.google.com/g/rustlang-security-announcements/c/NcNNL1Jq7Yw
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PDOWTHNVGBOP2HN27PUFIGRYNSNDTYRJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JANLZ3JXWJR7FSHE57K66UIZUIJZI67T/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3YB7CURSG64CIPCDPNMGPE4UU24AB6H/