CVE-2024-1892

Name	CVE-2024-1892
Description	A Regular Expression Denial of Service (ReDoS) vulnerability exists in the XMLFeedSpider class of the scrapy/scrapy project, specifically in the parsing of XML content. By crafting malicious XML content that exploits inefficient regular expression complexity used in the parsing process, an attacker can cause a denial-of-service (DoS) condition. This vulnerability allows for the system to hang and consume significant resources, potentially rendering services that utilize Scrapy for XML processing unresponsive.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1065111

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-scrapy (PTS)	buster	1.5.1-1+deb10u1	vulnerable
	bullseye	2.4.1-2+deb11u1	vulnerable
	bookworm	2.8.0-2	vulnerable
	sid, trixie	2.11.1-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-scrapy	source	(unstable)	2.11.1-1			1065111

Notes

[bookworm] - python-scrapy <no-dsa> (Minor issue)
[bullseye] - python-scrapy <no-dsa> (Minor issue)
[buster] - python-scrapy <no-dsa> (Minor issue)
https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b/
https://github.com/scrapy/scrapy/commit/479619b340f197a8f24c5db45bc068fb8755f2c5 (2.11.1)