medium6.5
CVE-2021-20257
An infinite loop flaw was found in the e1000 NIC emulator of the QEMU.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Qemu | Qemu | before 6.2.0 |
| Fedoraproject | Fedora | Version 33 |
| Redhat | Openstack Platform | Versions 10.0, 13.0 |
| Redhat | Enterprise Linux | Versions 6.0, 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems | Version 8.0 |
| Redhat | Enterprise Linux For Power Little Endian | Version 8.0 |
| Redhat | Codeready Linux Builder | All versions |
| Debian | Debian Linux | Version 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=1930087
- https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html
- https://security.gentoo.org/glsa/202208-27
- https://security.netapp.com/advisory/ntap-20220425-0003/
- https://www.openwall.com/lists/oss-security/2021/02/25/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1930087
- https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html
- https://security.gentoo.org/glsa/202208-27
- https://security.netapp.com/advisory/ntap-20220425-0003/
- https://www.openwall.com/lists/oss-security/2021/02/25/2