CVE-2026-31431
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Ver en NVDAnálisis
A vulnerability in the Linux kernel crypto subsystem is being actively exploited to allow privilege escalation. Because this affects core infrastructure used across almost all cloud and server environments, immediate patching via your distribution provider is recommended.
Severidad
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCWE-669CISA KEV
"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS
Afecta
linux:linux_kernelredhat:openshift_container_platformredhat:enterprise_linuxamazon:amazon_linuxcanonical:ubuntu_linuxdebian:debian_linuxopensuse:leapsuse:caas_platformsuse:enterprise_storagesuse:manager_proxysuse:manager_retail_branch_serversuse:manager_serversuse:openstack_cloudsuse:openstack_cloud_crowbarsuse:basesystem_modulesuse:development_tools_modulesuse:legacy_modulesuse:linux_enterprise_desktopsuse:linux_enterprise_high_availability_extensionsuse:linux_enterprise_high_performance_computingsuse:linux_enterprise_live_patchingsuse:linux_enterprise_microsuse:linux_enterprise_real_timesuse:linux_enterprise_serversuse:linux_enterprise_workstation_extensionsuse:linux_microsuse:public_cloud_modulesuse:realtime_modulenixos:nixosarista:cloudvision_agniarista:cloudvision_portalarista:velocloud_edgearista:velocloud_gatewayvmware:velocloud_orchestratorarista:netvisor_ossiemens:simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmwaresiemens:simatic_s7-1500_cpu_1518-4_pn\/dp_mfpsiemens:simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmwaresiemens:simatic_s7-1500_cpu_1518f-4_pn\/dp_mfpsiemens:siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmwaresiemens:siplus_s7-1500_cpu_1518-4_pn\/dp_mfpsiemens:simatic_s7-1500_tm_mfp_firmwaresiemens:simatic_s7-1500_tm_mfpDescripción técnica
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.
Referencias
- https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c
- https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc
- https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667
- https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82
- https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b
- https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5
- https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237
- https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8