CVE-2023-5215

Name	CVE-2023-5215
Description	A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbd_get_size() function correctly.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libnbd (PTS)	bookworm	1.14.2-1	vulnerable
	trixie	1.22.2-1	fixed
	forky, sid	1.24.3-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libnbd	source	(unstable)	1.16.5-1

Notes

[bookworm] - libnbd <no-dsa> (Minor issue)
[bullseye] - libnbd <no-dsa> (Minor issue)
https://listman.redhat.com/archives/libguestfs/2023-September/032635.html
Fixed by: https://gitlab.com/nbdkit/libnbd/-/commit/0f8ee8c6bd6dd93de771e6d4da87ec5a59504aae (v1.18.0)
Fixed by: https://gitlab.com/nbdkit/libnbd/-/commit/f03330181229360a1a97a264aa956fea54c657de (v1.16.5)