What’s Vulnerable › Vulnerabilities

CVE-2019-19524

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-12-03 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel before 5.3.12, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 19.04, 19.10
• Debian Linux: 8.0
• Linux kernel: before 5.3.12 — fixed in 5.3.12

How to fix

Upgrade to a fixed version: Linux kernel 5.3.12. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
• http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
• http://www.openwall.com/lists/oss-security/2019/12/03/4
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.12
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa3a5a1880c91bb92594ad42dfe9eedad7996b86
• https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
• https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
• https://seclists.org/bugtraq/2020/Jan/10
• https://usn.ubuntu.com/4225-1/
• https://usn.ubuntu.com/4225-2/
• https://usn.ubuntu.com/4226-1/
• https://usn.ubuntu.com/4227-1/

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