Vulnerability Details : CVE-2022-3643

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.
Published 2022-12-07 01:15:11
Updated 2023-11-29 15:15:08
Source Xen Project
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-3643

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-3643

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
6.5
 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
2.0
4.0
 nvd@nist.gov

CWE ids for CVE-2022-3643

References for CVE-2022-3643

Products affected by CVE-2022-3643

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