CVE-2019-18808
kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 18, 2019
Updated · June 28, 2026
Description
A flaw was found in the AMD Cryptographic Co-processor driver in the Linux kernel. An attacker, able to send invalid SHA type commands, could cause the system to crash. The highest threat from this vulnerability is to system availability.
Statement
This issue is rated as having Moderate impact because it affects only specific hardware enabled systems.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module ccp. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-400 · Uncontrolled Resource Consumption