PT-2017-2425 · Linux+2 · Linux Kernel+2

Pengfei Wang · Published 2017-06-28 · Updated 2023-02-24 · CVE-2017-9984

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.11.8

Description The issue is related to the snd msnd interrupt function in the Linux kernel, which allows local users to cause a denial of service or possibly have other unspecified impacts. This is due to a "double fetch" vulnerability, where the value of a message queue head pointer can be changed between two kernel reads, resulting in over-boundary access. The vulnerability may be exploited to cause a denial of service or other effects.

Recommendations For Linux kernel versions prior to 4.11.8, update to version 4.11.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the snd msnd interrupt function to minimize the risk of exploitation.

Fix

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2017-2206

ALT-PU-2017-2208

BDU:2017-01628

CVE-2017-9984

USN-3469-1

USN-3469-2

USN-3754-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 80

• https://ubuntu.com/security/CVE-2018-1093 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1092 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13094 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-2671 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10021 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16538 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-9984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16536 · Vendor Advisory
• https://bugzilla.kernel.org/show_bug.cgi?id=196131 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3754-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12154 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10877 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16537 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12153 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16535 · Vendor Advisory