CVE-2018-15471

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.

• CWE-125

• http://xenbits.xen.org/xsa/advisory-270.htmlVendor Advisory
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1607Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/3819-1/Third Party Advisory
• https://usn.ubuntu.com/3820-1/Third Party Advisory
• https://usn.ubuntu.com/3820-2/Third Party Advisory
• https://usn.ubuntu.com/3820-3/Third Party Advisory
• https://www.debian.org/security/2018/dsa-4313Third Party Advisory
• http://xenbits.xen.org/xsa/advisory-270.htmlVendor Advisory
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1607Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/3819-1/Third Party Advisory
• https://usn.ubuntu.com/3820-1/Third Party Advisory
• https://usn.ubuntu.com/3820-2/Third Party Advisory
• https://usn.ubuntu.com/3820-3/Third Party Advisory
• https://www.debian.org/security/2018/dsa-4313Third Party Advisory

Published

Aug 17, 2018

Last Modified

Jun 17, 2026

Status

Modified

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