An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-08-17T17:00:00

Updated: 2024-08-05T09:54:03.602Z

Reserved: 2018-08-17T00:00:00

Link: CVE-2018-15471

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2018-08-17T18:29:01.100

Modified: 2023-10-03T15:39:07.210

Link: CVE-2018-15471

cve-icon Redhat

Severity : Important

Publid Date: 2018-08-14T17:00:00Z

Links: CVE-2018-15471 - Bugzilla