CVE - CVE-2022-24713

CVE-ID
CVE-2022-24713	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
regex is an implementation of regular expressions for the Rust language. The regex crate features built-in mitigations to prevent denial of service attacks caused by untrusted regexes, or untrusted input matched by trusted regexes. Those (tunable) mitigations already provide sane defaults to prevent attacks. This guarantee is documented and it's considered part of the crate's API. Unfortunately a bug was discovered in the mitigations designed to prevent untrusted regexes to take an arbitrary amount of time during parsing, and it's possible to craft regexes that bypass such mitigations. This makes it possible to perform denial of service attacks by sending specially crafted regexes to services accepting user-controlled, untrusted regexes. All versions of the regex crate before or equal to 1.5.4 are affected by this issue. The fix is include starting from regex 1.5.5. All users accepting user-controlled regexes are recommended to upgrade immediately to the latest version of the regex crate. Unfortunately there is no fixed set of problematic regexes, as there are practically infinite regexes that could be crafted to exploit this vulnerability. Because of this, it us not recommend to deny known problematic regexes.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/rust-lang/regex/security/advisories/GHSA-m5pq-gvj9-9vr8 URL:https://github.com/rust-lang/regex/security/advisories/GHSA-m5pq-gvj9-9vr8 DEBIAN:DSA-5113 URL:https://www.debian.org/security/2022/dsa-5113 DEBIAN:DSA-5118 URL:https://www.debian.org/security/2022/dsa-5118 FEDORA:FEDORA-2022-8436ac4c39 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JANLZ3JXWJR7FSHE57K66UIZUIJZI67T/ FEDORA:FEDORA-2022-ceb3e03c5e URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PDOWTHNVGBOP2HN27PUFIGRYNSNDTYRJ/ FEDORA:FEDORA-2022-d20d44ba98 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3YB7CURSG64CIPCDPNMGPE4UU24AB6H/ GENTOO:GLSA-202208-08 URL:https://security.gentoo.org/glsa/202208-08 GENTOO:GLSA-202208-14 URL:https://security.gentoo.org/glsa/202208-14 MISC:https://github.com/rust-lang/regex/commit/ae70b41d4f46641dbc45c7a4f87954aea356283e URL:https://github.com/rust-lang/regex/commit/ae70b41d4f46641dbc45c7a4f87954aea356283e MISC:https://groups.google.com/g/rustlang-security-announcements/c/NcNNL1Jq7Yw URL:https://groups.google.com/g/rustlang-security-announcements/c/NcNNL1Jq7Yw MLIST:[debian-lts-announce] 20220407 [SECURITY] [DLA 2971-1] firefox-esr security update URL:https://lists.debian.org/debian-lts-announce/2022/04/msg00003.html MLIST:[debian-lts-announce] 20220411 [SECURITY] [DLA 2978-1] thunderbird security update URL:https://lists.debian.org/debian-lts-announce/2022/04/msg00009.html
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20220210	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20220210)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)