CVE-2019-11811 Information

Description

An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed related to drivers/char/ipmi/ipmi_si_intf.c drivers/char/ipmi/ipmi_si_mem_io.c and drivers/char/ipmi/ipmi_si_port_io.c.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html http://www.securityfocus.com/bid/108410 https://access.redhat.com/errata/RHSA-2019:1873 https://access.redhat.com/errata/RHSA-2019:1891 https://access.redhat.com/errata/RHSA-2019:1959 https://access.redhat.com/errata/RHSA-2019:1971 https://access.redhat.com/errata/RHSA-2019:4057 https://access.redhat.com/errata/RHSA-2019:4058 https://access.redhat.com/errata/RHSA-2020:0036 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.4 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=401e7e88d4ef80188ffa07095ac00456f901b8c4 https://github.com/torvalds/linux/commit/401e7e88d4ef80188ffa07095ac00456f901b8c4 https://security.netapp.com/advisory/ntap-20190719-0003/ https://support.f5.com/csp/article/K01512680

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.0