6.5

CVE-2021-3638

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Qemu ≫ Qemu Version >= 4.0.0 <= 6.1.0
Fedoraproject ≫ Fedora Version36
Fedoraproject ≫ Fedora Version37
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.043
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 2 4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvd@nist.gov 2.1 3.9 2.9
AV:L/AC:L/Au:N/C:N/I:N/A:P
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://bugzilla.redhat.com/show_bug.cgi?id=1979858
Third Party Advisory
Issue Tracking
https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html
Patch
Third Party Advisory
Exploit
Mailing List