CVE-2020-1711

Name	CVE-2020-1711
Description	An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.
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)
References	DLA-2144-1, DLA-2373-1
Debian Bugs	949731

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+deb11u5	fixed
	bookworm	1:7.2+dfsg-7+deb12u16	fixed
	bookworm (security)	1:7.2+dfsg-7+deb12u15	fixed
	trixie	1:10.0.3+ds-0+deb13u1	fixed
	trixie (security)	1:10.0.2+ds-2+deb13u1	fixed
	forky	1:10.1.2+ds-1	fixed
	sid	1:10.1.2+ds-2	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
qemu	source	jessie	1:2.1+dfsg-12+deb8u14	DLA-2144-1
qemu	source	stretch	1:2.8+dfsg-6+deb9u11	DLA-2373-1
qemu	source	buster	1:3.1+dfsg-8+deb10u4
qemu	source	(unstable)	1:4.2-2		949731
qemu-kvm	source	(unstable)	(unfixed)

Notes

Upstream patch: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=693fd2acdf14dd86c0bf852610f1c2cca80a74dc (5.0)
https://www.openwall.com/lists/oss-security/2020/01/23/3