Buffer overflow in Linux kernel - CVE-2019-17666

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Main Vulnerability Database Vulnerabilities #VU22595

Buffer overflow in Linux kernel - CVE-2019-17666

Published: November 7, 2019


Vulnerability identifier: #VU22595
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-17666
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the P2P (Wifi-Direct) functionality in rtl_p2p_noa_ie() function in drivers/net/wireless/realtek/rtlwifi/ps.c in Linux kernel when processing Notice and Absence frames. A remote attacker can send specially crafted data via the wireless network, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

Linux kernel
Arch Linux
CentOS
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Fedora
MRG Realtime
kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
kernel-alt (Red Hat package)
kernel-tools
kernel
Red Hat Virtualization Host
Dell EMC Data Protection Search
Juniper Junos Space

How to mitigate CVE-2019-17666

Install updates from vendor's website.

Linux kernel - addressed in versions 4.4.199, 4.9.199, 4.14.152, 4.19.82, 5.3.9
kernel (Red Hat package) - addressed in versions 2.6.32-754.29.1.el6, 3.10.0-327.85.1.el7, 3.10.0-514.74.1.el7, 3.10.0-693.65.1.el7, 3.10.0-957.48.1.el7, 3.10.0-1062.18.1.el7, 4.18.0-80.16.1.el8_0, 4.18.0-147.5.1.el8_1
kernel-rt (Red Hat package) - addressed in versions 3.10.0-693.65.1.rt56.663.el6rt, 3.10.0-1062.18.1.rt56.1044.el7, 4.18.0-147.5.1.rt24.98.el8_1
kernel-alt (Red Hat package) - update to 4.14.0-115.18.1.el7a
kernel-tools - update to 5.3.7-300.fc31
kernel - update to 5.3.7-301.fc31
Dell EMC Data Protection Search - update to 19.3.0
Juniper Junos Space - update to 20.3R1

External References

Related Security Bulletins