CVE-2020-1711
published 2020-02-11CVE-2020-1711: 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…
PriorityP339medium6CVSS 3.1
AVNACHPRLUINSCCLILAL
EPSS
4.02%
89.4th percentile
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.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:4.2-2 (bookworm) | qemu 1:4.2-2 (bookworm) |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_qemu-kvm_4.2.0-13_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| qemu | qemu | >= 0 < 1:4.2-2 | 1:4.2-2 |
| qemu | qemu | >= 0 < 1:4.2-2 | 1:4.2-2 |
| qemu | qemu | >= 0 < 1:4.2-2 | 1:4.2-2 |
| qemu | qemu | >= 0 < 1:4.2-2 | 1:4.2-2 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.43 | 1:2.5+dfsg-5ubuntu10.43 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.23 | 1:2.11+dfsg-1ubuntu7.23 |
| qemu | qemu | >= 2.12.0 < 4.2.1 | 4.2.1 |
| red_hat | qemu | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | openstack | — | — |
| redhat | openstack | — | — |
| ubuntu | qemu | — | — |
CVSS provenance
nvdv3.16.0MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
nvdv2.06.0MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P
osv6.0MEDIUM
vendor_debian7.7HIGH
vendor_redhat7.7HIGH
vendor_ubuntu7.7HIGH
vendor_msrc6.0MEDIUM
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Ubuntu
QEMU regression
vendor_ubuntu·2026-06-28·CVSS 3.8
CVE-2020-11947 [LOW] QEMU regression
Title: QEMU regression
Summary: USN-8412-1 introduced a regression in QEMU
USN-8412-1 fixed vulnerabilities QEMU. On Ubuntu 20.04 LTS, the fix for
CVE-2024-4467 was incomplete and prevented the creation of boot volumes
from qcow2 images. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that the
iSCSI block driver in QEMU incorrectly handled certain responses from an
iSCSI server. A remote attacker could possibly use this issue to cause
QEMU to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-1711)
It was discovered that the iSCSI block driver in QEMU incorrectly handled
certain memory operations
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2026-06-09·CVSS 3.8
CVE-2021-3416 [LOW] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that the
iSCSI block driver in QEMU incorrectly handled certain responses from an
iSCSI server. A remote attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-1711)
It was discovered that the iSCSI block driver in QEMU incorrectly handled
certain memory operations, leading to a heap-based buffer over-read. An
attacker could possibly use this issue to expose sensitive information from
the host. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-11947)
Ziming Zhang discovered that the SM501 display driver in QEM
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2020-02-18·CVSS 7.7
CVE-2020-1711 [HIGH] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that QEMU
incorrectly handled iSCSI server responses. A remote attacker in control of
the iSCSI server could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code. (CVE-2020-1711)
It was discovered that the QEMU libslirp component incorrectly handled
memory. A remote attacker could use this issue to cause QEMU to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-7039, CVE-2020-8608)
Instructions: After a standard system update you need to restart all QEMU virtual
machines to make all the necessary changes.
Microsoft
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
vendor_msrc·2020-02-11·CVSS 6.0
CVE-2020-1711 [HIGH] CWE-787 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
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with
Red Hat
QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
vendor_redhat·2020-01-23·CVSS 7.7
CVE-2020-1711 [HIGH] CWE-122 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
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.
An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU 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 f
Debian
CVE-2020-1711: qemu - An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block dr...
vendor_debian·2020·CVSS 7.7
CVE-2020-1711 [HIGH] CVE-2020-1711: qemu - An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block dr...
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.
Scope: local
bookworm: resolved (fixed in 1:4.2-2)
bullseye: resolved (fixed in 1:4.2-2)
forky: resolved (fixed in 1:4.2-2)
sid: resolved (fixed in 1:4.2-2)
trixie: resolved (fixed in 1:4.2-2)
GHSA
GHSA-8gvc-95pj-x5r8: An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2
ghsa_unreviewed·2022-05-24
CVE-2020-1711 [MEDIUM] CWE-787 GHSA-8gvc-95pj-x5r8: An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2
An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2.x.x up to and including 2.12.0 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.
OSV
qemu vulnerabilities
osv·2020-02-18·CVSS 6.0
CVE-2020-1711 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that QEMU
incorrectly handled iSCSI server responses. A remote attacker in control of
the iSCSI server could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code. (CVE-2020-1711)
It was discovered that the QEMU libslirp component incorrectly handled
memory. A remote attacker could use this issue to cause QEMU to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-7039, CVE-2020-8608)
OSV
CVE-2020-1711: An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2
osv·2020-02-11·CVSS 6.0
CVE-2020-1711 [MEDIUM] CVE-2020-1711: An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions 2
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-27750 ImageMagick: division by zero in MagickCore/colorspace-private.h
bugzilla·2020-10-27·CVSS 5.5
CVE-2020-27750 [MEDIUM] CVE-2020-27750 ImageMagick: division by zero in MagickCore/colorspace-private.h
CVE-2020-27750 ImageMagick: division by zero in MagickCore/colorspace-private.h
In ImageMagick 7.0.8-67 there are 3 division by zero at MagickCore/colorspace-private.h and outside the range bug at MagickCore/quantum.h:120.
Reference:
https://github.com/ImageMagick/ImageMagick/issues/1711
Upstream patch:
https://github.com/ImageMagick/ImageMagick/commit/a81ca9a1b46a96be83682af3389f0a6f3d0d389d
Discussion:
Flaw Summary:
In ConvertRGBToCMYK() of MagickCore/colorspace-private.h , there are calculations involved in cyan, magenta, and yellow colors which could cause a divide-by-zero runtime error and crash ImageMagick when it is provided with untrusted input file data. The patch uses the function PerceptibleReciprocal() in addition to replacing division with multiplication, in order to avo
Bugzilla
CVE-2020-1711 xen: QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [fedora-all]
bugzilla·2020-01-23·CVSS 7.7
CVE-2020-1711 [HIGH] CVE-2020-1711 xen: QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [fedora-all]
CVE-2020-1711 xen: QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue af
Bugzilla
CVE-2020-1711 qemu: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [fedora-all]
bugzilla·2020-01-23·CVSS 7.7
CVE-2020-1711 [HIGH] CVE-2020-1711 qemu: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [fedora-all]
CVE-2020-1711 qemu: block: iscsi: OOB heap access via an unexpected response of iSCSI Server [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects
Bugzilla
CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
bugzilla·2020-01-23·CVSS 7.7
CVE-2020-1711 [HIGH] CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
An out-of-bounds heap buffer access issue was found in the way iSCSI Block driver
in QEMU handled response coming from an iSCSI server, while checking
status of a Logical Address Block (LBA) in iscsi_co_block_status() routine.
A remote user could use this flaw to crash the QEMU process resulting in DoS OR
potentially execute arbitrary code with privileges of the QEMU process on the
host.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.html
Reference:
-> https://www.openwall.com/lists/oss-security/2020/01/23/3
Discussion:
Acknowledgments:
Name: Felipe Franciosi (nutanix.com), Raphael Norwitz (nutanix.com), Peter Turschmid (nutanix.com)
---
Created qemu trac
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlhttps://access.redhat.com/errata/RHSA-2020:0669https://access.redhat.com/errata/RHSA-2020:0730https://access.redhat.com/errata/RHSA-2020:0731https://access.redhat.com/errata/RHSA-2020:0773https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1711https://lists.debian.org/debian-lts-announce/2020/03/msg00017.htmlhttps://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.htmlhttps://security.gentoo.org/glsa/202005-02https://usn.ubuntu.com/4283-1/https://www.openwall.com/lists/oss-security/2020/01/23/3http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlhttps://access.redhat.com/errata/RHSA-2020:0669https://access.redhat.com/errata/RHSA-2020:0730https://access.redhat.com/errata/RHSA-2020:0731https://access.redhat.com/errata/RHSA-2020:0773https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1711https://lists.debian.org/debian-lts-announce/2020/03/msg00017.htmlhttps://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.htmlhttps://security.gentoo.org/glsa/202005-02https://usn.ubuntu.com/4283-1/https://www.openwall.com/lists/oss-security/2020/01/23/3
2020-02-11
Published