CVE-2016-7908

Name	CVE-2016-7908
Description	The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
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-1599-1, DLA-652-1, DLA-653-1
Debian Bugs	839835

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qemu (PTS)	bullseye	1:5.2+dfsg-11+deb11u3	fixed
	bullseye (security)	1:5.2+dfsg-11+deb11u2	fixed
	bookworm	1:7.2+dfsg-7+deb12u7	fixed
	trixie	1:9.1.1+ds-2	fixed
	sid	1:9.1.1+ds-5	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
qemu	source	wheezy	1.1.2+dfsg-6+deb7u16	DLA-652-1
qemu	source	jessie	1:2.1+dfsg-12+deb8u8	DLA-1599-1
qemu	source	(unstable)	1:2.8+dfsg-1		839835
qemu-kvm	source	wheezy	1.1.2+dfsg-6+deb7u16	DLA-653-1
qemu-kvm	source	(unstable)	(unfixed)

Notes

https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html
Fixed by: http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a