ati-vga in hw/display/ati.c in QEMU 4.2.0 allows guest OS users to trigger infinite recursion via a crafted mm_index value during an ati_mm_read or ati_mm_write call.
Weakness
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qemu | Qemu | 4.2.0 (including) | 4.2.0 (including) |
| Qemu | Ubuntu | eoan | * |
| Qemu | Ubuntu | esm-infra/focal | * |
| Qemu | Ubuntu | focal | * |
| Qemu | Ubuntu | trusty | * |
Potential Mitigations
Related Attack Patterns
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html
- https://cve.openeuler.org/cve#/CVEInfo/CVE-2020-13800
- https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00825.html
- https://security.gentoo.org/glsa/202011-09
- https://security.netapp.com/advisory/ntap-20200717-0001/
- https://usn.ubuntu.com/4467-1/
- https://www.openwall.com/lists/oss-security/2020/06/04/2
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html
- https://cve.openeuler.org/cve#/CVEInfo/CVE-2020-13800
- https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00825.html
- https://security.gentoo.org/glsa/202011-09
- https://security.netapp.com/advisory/ntap-20200717-0001/
- https://usn.ubuntu.com/4467-1/
- https://www.openwall.com/lists/oss-security/2020/06/04/2