CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2021-3744
Medium (5.5). EPSS 0.5% chance of exploitation in the next 30 days.
A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
- CWE
- CWE-401
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- fedoraproject:fedora
- linux:linux_kernel
- oracle:communications_cloud_native_core_binding_support_function
- oracle:communications_cloud_native_core_network_exposure_function
- oracle:communications_cloud_native_core_policy
- redhat:build_of_quarkus
- redhat:codeready_linux_builder
- redhat:codeready_linux_builder_eus
- redhat:codeready_linux_builder_for_power_little_endian
- redhat:codeready_linux_builder_for_power_little_endian_eus
- redhat:developer_tools
- redhat:enterprise_linux_eus
- redhat:enterprise_linux_for_ibm_z_systems_eus
- redhat:enterprise_linux_for_power_little_endian_eus
- redhat:enterprise_linux_for_real_time
- redhat:enterprise_linux_for_real_time_for_nfv
- redhat:enterprise_linux_for_real_time_for_nfv_tus
- redhat:enterprise_linux_server_eus
- redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
- redhat:enterprise_linux_server_tus
- redhat:enterprise_linux_server_update_services_for_sap_solutions
- redhat:virtualization_host
References
- http://www.openwall.com/lists/oss-security/2021/09/14/1
- https://bugzilla.redhat.com/show_bug.cgi?id=2000627
- https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680
- https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html