6.5

CVE-2021-20257

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Qemu ≫ Qemu Version < 6.2.0
Fedoraproject ≫ Fedora Version 33
Redhat ≫ Openstack Platform Version 10.0
Redhat ≫ Openstack Platform Version 13.0
Redhat ≫ Enterprise Linux Version 6.0
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Version 8.0 SwEdition advanced_virtualization
Debian ≫ Debian Linux Version 10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.37% 0.297
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.5 2 4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
NIST 2.1 3.9 2.9
AV:L/AC:L/Au:N/C:N/I:N/A:P
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

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://bugzilla.redhat.com/show_bug.cgi?id=1930087
Patch
Third Party Advisory
Issue Tracking
https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8
Patch
Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html
Patch
Vendor Advisory
Mailing List
https://security.netapp.com/advisory/ntap-20220425-0003/
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/02/25/2
Patch
Third Party Advisory
Mailing List