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.
References (12)
Core 12
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1711
Mailing List, Patch, Third Party Advisory x_refsource_misc
https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.html
Mailing List, Third Party Advisory x_refsource_misc
https://www.openwall.com/lists/oss-security/2020/01/23/3
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4283-1/
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0669
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0773
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0730
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0731
Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/03/msg00017.html
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202005-02
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
Scores
CVSS v3
7.7
EPSS
0.0056
EPSS Percentile
68.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
Details
CWE
CWE-122
CWE-787
Status
published
Products (8)
debian/debian_linux
8.0
debian/debian_linux
9.0
opensuse/leap
15.1
qemu/qemu
2.12.0 - 4.2.1
redhat/enterprise_linux
7.0
redhat/enterprise_linux
8.0
redhat/openstack
10
redhat/openstack
13
Published
Feb 11, 2020
Tracked Since
Feb 18, 2026