CVE-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 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.

• CWE-122
• CWE-787

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlThird Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0669Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0730Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0731Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0773Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1711Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/03/msg00017.htmlThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing List, Third Party Advisory
• https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.htmlMailing List, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/202005-02Third Party Advisory
• https://usn.ubuntu.com/4283-1/Third Party Advisory
• https://www.openwall.com/lists/oss-security/2020/01/23/3Mailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlThird Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0669Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0730Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0731Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0773Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1711Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/03/msg00017.htmlThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing List, Third Party Advisory
• https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg05535.htmlMailing List, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/202005-02Third Party Advisory
• https://usn.ubuntu.com/4283-1/Third Party Advisory
• https://www.openwall.com/lists/oss-security/2020/01/23/3Mailing List, Third Party Advisory

Published

Feb 11, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-17104Visual Studio Code JSHint Extension Remote Code Execution Vu…7.8
• CVE-2020-17105AV1 Video Extension Remote Code Execution Vulnerability7.8
• CVE-2020-17106HEVC Video Extensions Remote Code Execution Vulnerability7.8
• CVE-2020-17107HEVC Video Extensions Remote Code Execution Vulnerability7.8
• CVE-2020-17108HEVC Video Extensions Remote Code Execution Vulnerability7.8
• CVE-2020-17109HEVC Video Extensions Remote Code Execution Vulnerability7.8
• CVE-2020-17110HEVC Video Extensions Remote Code Execution Vulnerability7.8
• CVE-2020-17113Windows Camera Codec Information Disclosure Vulnerability5.5
• CVE-2020-17115Microsoft SharePoint Server Spoofing Vulnerability8
• CVE-2020-17117Microsoft Exchange Remote Code Execution Vulnerability6.6
• CVE-2020-17118Microsoft SharePoint Remote Code Execution Vulnerability8.1
• CVE-2020-17119Microsoft Outlook Information Disclosure Vulnerability6.5