CVE-2020-1711

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1711

https://www.openwall.com/lists/oss-security/2020/01/23/3

https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.html

https://usn.ubuntu.com/4283-1/

https://access.redhat.com/errata/RHSA-2020:0669

https://access.redhat.com/errata/RHSA-2020:0730

https://access.redhat.com/errata/RHSA-2020:0731

https://access.redhat.com/errata/RHSA-2020:0773

https://lists.debian.org/debian-lts-announce/2020/03/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html

https://security.gentoo.org/glsa/202005-02

https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html

Details

Source: MITRE

Published: 2020-02-11

Updated: 2021-08-04

Type: CWE-787

Risk Information

CVSS v2

Base Score: 6

Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 6.8

Severity: MEDIUM

CVSS v3

Base Score: 6

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

Impact Score: 3.7

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2

OR

cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
147700EulerOS Virtualization 2.9.0 : qemu (EulerOS-SA-2021-1667)NessusHuawei Local Security Checks
medium
147523EulerOS Virtualization 2.9.1 : qemu (EulerOS-SA-2021-1632)NessusHuawei Local Security Checks
medium
145992CentOS 8 : virt:rhel (CESA-2020:1358)NessusCentOS Local Security Checks
medium
140541Debian DLA-2373-1 : qemu security updateNessusDebian Local Security Checks
medium
135664Oracle Linux 8 : virt:ol (ELSA-2020-1358)NessusOracle Linux Local Security Checks
medium
139382RHEL 8 : virt:rhel (RHSA-2020:1358)NessusRed Hat Local Security Checks
medium
137586SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1538-1)NessusSuSE Local Security Checks
medium
137581SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1526-1)NessusSuSE Local Security Checks
medium
137579SUSE SLES15 Security Update : qemu (SUSE-SU-2020:1523-1)NessusSuSE Local Security Checks
medium
137577SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1514-1)NessusSuSE Local Security Checks
medium
137549SUSE SLES12 Security Update : qemu (SUSE-SU-2020:1501-1)NessusSuSE Local Security Checks
medium
137306RHEL 8 : virt:rhel (RHSA-2020:2472)NessusRed Hat Local Security Checks
medium
136539GLSA-202005-02 : QEMU: Multiple vulnerabilitiesNessusGentoo Local Security Checks
medium
135774RHEL 7 : qemu-kvm-ma (RHSA-2020:1505)NessusRed Hat Local Security Checks
medium
135265openSUSE Security Update : qemu (openSUSE-2020-468)NessusSuSE Local Security Checks
medium
135249RHEL 7 : qemu-kvm-ma (RHSA-2020:1352)NessusRed Hat Local Security Checks
medium
135176RHEL 7 : qemu-kvm-rhev (RHSA-2020:1296)NessusRed Hat Local Security Checks
medium
135173RHEL 7 : qemu-kvm-rhev (RHSA-2020:1300)NessusRed Hat Local Security Checks
medium
135169SUSE SLES12 Security Update : qemu (SUSE-SU-2020:0845-1)NessusSuSE Local Security Checks
medium
135168SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2020:0844-1)NessusSuSE Local Security Checks
medium
135051RHEL 7 : qemu-kvm-ma (RHSA-2020:1150)NessusRed Hat Local Security Checks
medium
135033RHEL 7 : qemu-kvm-rhev (RHSA-2020:1216)NessusRed Hat Local Security Checks
high
134898Amazon Linux 2 : qemu (ALAS-2020-1407)NessusAmazon Linux Local Security Checks
medium
134631Debian DLA-2144-1 : qemu security updateNessusDebian Local Security Checks
medium
134344RHEL 7 : qemu-kvm-rhev (RHSA-2020:0730)NessusRed Hat Local Security Checks
critical
134272RHEL 8 : virt:8.1 and virt-devel:8.1 (RHSA-2020:0731)NessusRed Hat Local Security Checks
critical
134264RHEL 7 : qemu-kvm-ma (RHSA-2020:0669)NessusRed Hat Local Security Checks
critical
133796Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : QEMU vulnerabilities (USN-4283-1)NessusUbuntu Local Security Checks
medium
133419Debian DSA-4616-1 : qemu - security updateNessusDebian Local Security Checks
medium