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…
Does this matter?
Lower severity and a low EPSS score (4.02%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.0 MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
- EPSS
- 4.02% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-787
- Affected
- qemu/qemu · redhat/openstack · redhat/enterprise linux · debian/debian linux · opensuse/leap
- Source
- secalert@redhat.com
EPSS 4.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.