CVE-2019-19526

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% 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 5.3.9, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098.

Affected products

Canonical Ubuntu Linux: 18.04, 19.04
Linux kernel: before 5.3.9 — fixed in 5.3.9
openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Linux kernel 5.3.9. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
http://www.openwall.com/lists/oss-security/2019/12/03/4
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6af3aa57a0984e061f61308fe181a9a12359fecc
https://usn.ubuntu.com/4226-1/
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
http://www.openwall.com/lists/oss-security/2019/12/03/4
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6af3aa57a0984e061f61308fe181a9a12359fecc
https://usn.ubuntu.com/4226-1/

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