CVE-2023-4135 Information

Description

A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed.

Reference

https://access.redhat.com/security/cve/CVE-2023-4135 https://bugzilla.redhat.com/show_bug.cgi?id=2229101 https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521