PT-2018-3500 · Linux+3 · Linux Kernel+3

Published 2018-05-06 · Updated 2020-05-26 · CVE-2018-21008

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.16.7

Description: A use-after-free issue can be caused by the function rsi mac80211 detach in the file drivers/net/wireless/rsi/rsi 91x mac80211.c. This issue may allow an attacker to cause a denial of service.

Recommendations: For Linux kernel versions prior to 4.16.7, update to version 4.16.7 or later to resolve the issue. As a temporary workaround, consider disabling the rsi mac80211 detach function until a patch is available. Restrict access to the vulnerable module rsi 91x mac80211 to minimize the risk of exploitation.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2018-1659

ALT-PU-2019-1433

BDU:2020-02917

CVE-2018-21008

DLA-1930-1

DLA-2114-1

OPENSUSE-SU-2019:2173-1

OPENSUSE-SU-2019:2181-1

OPENSUSE-SU-2019_2173-1

OPENSUSE-SU-2019_2181-1

SUSE-SU-2019:2412-1

SUSE-SU-2019:2414-1

SUSE-SU-2019:2424-1

SUSE-SU-2019:2648-1

SUSE-SU-2019:2651-1

SUSE-SU-2019:2658-1

SUSE-SU-2019:2738-1

SUSE-SU-2019:2756-1

SUSE-SU-2020:1255-1

SUSE-SU-2020:1275-1

USN-4162-1

USN-4162-2

USN-4163-1

USN-4163-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 741

• https://osv.dev/vulnerability/USN-4162-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2756-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4162-2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-21008 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:2648-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4163-2 · Vendor Advisory
• https://usn.ubuntu.com/4163-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4162-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1255-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-10906 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2181-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02917 · Security Note
• https://ubuntu.com/security/CVE-2019-15505 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2424-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18232 · Vendor Advisory