3.2

CVE-2021-20203

Exploit
An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Qemu ≫ Qemu Version <= 5.2.0
Fedoraproject ≫ Fedora Version33
Debian ≫ Debian Linux Version9.0
Debian ≫ Debian Linux Version10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.59% 0.434
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 3.2 1.5 1.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
nvd@nist.gov 2.1 3.9 2.9
AV:L/AC:L/Au:N/C:N/I:N/A:P
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202208-27
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html
Third Party Advisory
Mailing List
https://bugs.launchpad.net/qemu/+bug/1913873
Patch
Third Party Advisory
Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=1922441
Patch
Third Party Advisory
Issue Tracking