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.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1930087 | Issue Tracking Patch Third Party Advisory |
https://github.com/qemu/qemu/commit/3de46e6fc489c52c9431a8a832ad8170a7569bd8 | Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html | Mailing List Third Party Advisory |
https://lists.gnu.org/archive/html/qemu-devel/2021-02/msg07428.html | Mailing List Patch Vendor Advisory |
https://security.gentoo.org/glsa/202208-27 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20220425-0003/ | Third Party Advisory |
https://www.openwall.com/lists/oss-security/2021/02/25/2 | Mailing List Patch Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2022-03-16T14:12:26
Updated: 2022-09-05T05:06:44
Reserved: 2020-12-17T00:00:00
Link: CVE-2021-20257
JSON object: View
NVD Information
Status : Modified
Published: 2022-03-16T15:15:09.983
Modified: 2023-02-12T22:15:17.573
Link: CVE-2021-20257
JSON object: View
Redhat Information
No data.
CWE