CVE-2019-19525

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% 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 5.3.6, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver, aka CID-7fd25e6fc035.

Affected products

Debian Linux: 8.0
Linux kernel: before 5.3.6 — fixed in 5.3.6
openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Linux kernel 5.3.6. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
http://www.openwall.com/lists/oss-security/2019/12/03/4
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fd25e6fc035f4b04b75bca6d7e8daa069603a76
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
http://www.openwall.com/lists/oss-security/2019/12/03/4
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.6
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fd25e6fc035f4b04b75bca6d7e8daa069603a76
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html

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