CVE-2021-3524

Name	CVE-2021-3524
Description	A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. In addition, the prior bug fix for CVE-2020-10753 did not account for the use of \r as a header separator, thus a new flaw has been created.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2735-1, DLA-3629-1
Debian Bugs	988889

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ceph (PTS)	buster	12.2.11+dfsg1-2.1	vulnerable
	buster (security)	12.2.11+dfsg1-2.1+deb10u1	fixed
	bullseye	14.2.21-1	fixed
	bookworm	16.2.11+ds-2	fixed
	trixie	16.2.11+ds-5	fixed
	sid	18.2.1+ds-5	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
ceph	source	stretch	10.2.11-2+deb9u1	DLA-2735-1
ceph	source	buster	12.2.11+dfsg1-2.1+deb10u1	DLA-3629-1
ceph	source	(unstable)	14.2.21-1		988889

https://bugzilla.redhat.com/show_bug.cgi?id=1951674
Fixed by: https://github.com/ceph/ceph/commit/763aebb94678018f89427137ffbc0c5205b1edc1