CVE-2018-15471

 

Published at: - 17-08-2018 08:29

Last modified: - 26-10-2022 01:44

Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://bugs.chromium.org/p/project-zero/issues/detail?id=1607
• http://xenbits.xen.org/xsa/advisory-270.html
• DSA-4313-Third Party Advisory
• USN-3820-3-Third Party Advisory
• USN-3820-2-Third Party Advisory
• USN-3820-1-Third Party Advisory
• USN-3819-1-Third Party Advisory
• [debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update-

 

Keywords

NVD

 

CVE-2018-15471

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures