| Package | Affected versions | Patched versions |
|---|---|---|
| qemu | ≥ 2.12.0, < 4.2.1 | 4.2.1 |
| openstack | = 10= 13 |
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.
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