PT-2018-3589 · Linux+2 · Linux Kernel+2

Published 2018-03-26 · Updated 2023-01-19 · CVE-2018-20961

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.16.4

Description A double free vulnerability in the f midi set alt function of drivers/usb/gadget/function/f midi.c in the f midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact.

Recommendations For Linux kernel versions prior to 4.16.4, update to version 4.16.4 or later to resolve the issue. As a temporary workaround, consider disabling the f midi set alt function until a patch is available.

Exploit

Fix

DoS

Buffer Overflow

Resource Exhaustion

Double Free

Weakness Enumeration

CWE-119

CWE-400

CWE-415

Related Identifiers

ALT-PU-2018-1621

ALT-PU-2018-1622

BDU:2021-00376

CVE-2018-20961

USN-4145-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 41

• 🔥 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f · Exploit
• https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f · Patch
• https://ubuntu.com/security/CVE-2019-13631 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-20961 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-0136 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-20961 · Security Note
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4145-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18509 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-20961 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-10905 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-20961 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-20976 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4145-1 · Vendor Advisory
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=1212483 · Vendor Advisory