PT-2019-2824 · Linux+3 · Linux Kernel+3
Vladis Dronov
·
Published
2019-01-24
·
Updated
2020-10-19
·
CVE-2019-3819
CVSS v2.0
4.9
Medium
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions v4.18 and newer
Description
A flaw was found in the Linux kernel in the function
hid debug events read() in the drivers/hid/hid-debug.c file, which may enter an infinite loop with certain parameters passed from a userspace. This could allow a local privileged user (with "root" privileges) to cause a system lock up and a denial of service. The issue is related to uncontrolled resource consumption.Recommendations
For Linux kernel versions v4.18 and newer, consider disabling the
hid debug events read() function as a temporary workaround to minimize the risk of exploitation until a patch is available. Restrict access to the drivers/hid/hid-debug.c file to prevent potential abuse.Exploit
Fix
DoS
Resource Exhaustion
Infinite Loop
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Related Identifiers
Affected Products
Alt Linux
Linux Kernel
Suse
Ubuntu