Heap-based Buffer Overflow Affecting virt:rhel/qemu-kvm-block-gluster package, versions <15:2.12.0-88.module+el8.1.0+5708+85d8e057.3


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.29% (69th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4705131
  • published26 Jul 2021
  • disclosed23 Jan 2020

Introduced: 23 Jan 2020

CVE-2020-1711  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/qemu-kvm-block-gluster to version 15:2.12.0-88.module+el8.1.0+5708+85d8e057.3 or higher.
This issue was patched in RHSA-2020:1358.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:rhel/qemu-kvm-block-gluster package and not the virt:rhel/qemu-kvm-block-gluster package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Scores

version 3.1