In the Linux kernel, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c References: http://www.openwall.com/lists/oss-security/2019/12/03/4 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.12 http://seclists.org/oss-sec/2019/q4/115 Upstream patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa3a5a1880c91bb92594ad42dfe9eedad7996b86
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1783460]
This is fixed for Fedora in the 5.3.12 stable kernel update.
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:2104 https://access.redhat.com/errata/RHSA-2020:2104
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2019-19524
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4062 https://access.redhat.com/errata/RHSA-2020:4062
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4060 https://access.redhat.com/errata/RHSA-2020:4060
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4431 https://access.redhat.com/errata/RHSA-2020:4431
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4609 https://access.redhat.com/errata/RHSA-2020:4609
Mitigation: To mitigate this issue for the Red Hat Enterprise Linux 7 or higher version, prevent module ff-memless from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.