A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:0135 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2024:0404 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2024:0569 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2024:2135 | vendor advisory |
| https://access.redhat.com/security/cve/CVE-2023-3019 | third party advisory vdb entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=2222351 | patch third party advisory issue tracking |
| https://security.netapp.com/advisory/ntap-20230831-0005/ |