CVE-2021-3638
 
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Se ha encontrado un fallo de acceso a memoria fuera de límites en la emulación de dispositivos ATI VGA de QEMU. Este fallo es producido en la rutina ati_2d_blt() mientras son manejadas operaciones de escritura MMIO cuando el huésped proporciona valores no válidos para los parámetros de pantalla de destino. Un huésped malicioso podría usar este fallo para bloquear el proceso QEMU en el host, resultando en una denegación de servicio
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-07-08 CVE Reserved
- 2021-10-28 CVE Published
- 2023-10-23 EPSS Updated
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (6)
URL | Tag | Source |
---|---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1979858 | Issue Tracking | |
https://security.netapp.com/advisory/ntap-20220407-0003 | Third Party Advisory | |
https://ubuntu.com/security/CVE-2021-3638 | Third Party Advisory |
URL | Date | SRC |
---|---|---|
https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html | 2024-08-03 |
URL | Date | SRC |
---|
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | >= 4.0.0 <= 6.1.0 Search vendor "Qemu" for product "Qemu" and version " >= 4.0.0 <= 6.1.0" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 36 Search vendor "Fedoraproject" for product "Fedora" and version "36" | - |
Affected
| ||||||
Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 37 Search vendor "Fedoraproject" for product "Fedora" and version "37" | - |
Affected
|