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CVE-2020-1711

MEDIUMCVSS 6/10EPSS 4.02%

Last modified

CVE-2020-1711 is a medium-severity vulnerability rated 6/10 on the CVSS scale. 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.. EPSS estimates a 4.02% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6/10

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

EPSS Probability
4.02%

89.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
QemuQemu>= 2.12.0, < 4.2.1
RedhatOpenstack10
RedhatOpenstack13
RedhatEnterprise Linux7.0
RedhatEnterprise Linux8.0
DebianDebian Linux8.0
DebianDebian Linux9.0
OpensuseLeap15.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2020-1711?
CVE-2020-1711 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 4.02% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1711?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1711?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST