hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00004.html | issue tracking third party advisory patch |
| http://www.openwall.com/lists/oss-security/2020/06/01/6 | mailing list third party advisory patch |
| https://security.netapp.com/advisory/ntap-20200608-0007/ | third party advisory |
| http://www.openwall.com/lists/oss-security/2020/06/15/8 | mailing list third party advisory patch |
| https://www.debian.org/security/2020/dsa-4728 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html | third party advisory mailing list |
| https://usn.ubuntu.com/4467-1/ | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/202011-09 | third party advisory vendor advisory |