CVE-2021-3923

A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
2.3 LOW
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
redhatCNA
---
---
CVEADP
---
---
CISA-ADPADP
2.3 LOW
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
VendorProductVersion
linuxlinux_kernel
𝑥
< 5.15.14
redhatenterprise_linux
6.0
redhatenterprise_linux
7.0
redhatenterprise_linux
8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-105.119
released
bionic
Fixed 4.15.0-173.182
released
xenial
not-affected
trusty
not-affected
linux-allwinner
noble
dne
mantic
dne
lunar
not-affected
kinetic
not-affected
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-allwinner-5.19
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1069.73
released
bionic
Fixed 4.15.0-1124.133
released
xenial
not-affected
trusty
not-affected
linux-aws-5.0
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.11
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.19
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-5.3
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-1069.73~18.04.1
released
xenial
dne
trusty
dne
linux-aws-5.8
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-aws-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-hwe
kinetic
dne
jammy
dne
focal
dne
bionic
dne
xenial
Fixed 4.15.0-1124.133~16.04.1
released
trusty
dne
linux-azure
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1073.76
released
bionic
ignored
xenial
Fixed 4.15.0-1134.147~16.04.1
released
trusty
Fixed 4.15.0-1134.147~14.04.1
released
linux-azure-4.15
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 4.15.0-1134.147
released
xenial
dne
trusty
dne
linux-azure-5.11
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.19
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-5.3
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-azure-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-1073.76~18.04.1
released
xenial
dne
trusty
dne
linux-azure-5.8
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-azure-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-edge
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-azure-fde
kinetic
dne
jammy
not-affected
focal
Fixed 5.4.0-1073.76
released
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-5.19
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-fde-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-azure-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-bluefield
kinetic
dne
jammy
dne
focal
Fixed 5.4.0-1032.35
released
bionic
dne
xenial
dne
trusty
dne
linux-dell300x
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 4.15.0-1038.43
released
xenial
dne
trusty
dne
linux-fips
kinetic
dne
jammy
dne
focal
dne
bionic
dne
xenial
ignored
trusty
ignored
linux-gcp
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1068.72
released
bionic
ignored
xenial
Fixed 4.15.0-1119.133~16.04.1
released
trusty
dne
linux-gcp-4.15
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 4.15.0-1119.133
released
xenial
dne
trusty
dne
linux-gcp-5.11
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.19
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-5.3
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gcp-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-1068.72~18.04.1
released
xenial
dne
trusty
dne
linux-gcp-5.8
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-fips
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gke
noble
not-affected
kinetic
dne
jammy
not-affected
focal
Fixed 5.4.0-1066.69
released
bionic
dne
xenial
ignored
trusty
dne
linux-gke-4.15
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-5.0
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-gke-5.3
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gkeop
kinetic
dne
jammy
not-affected
focal
Fixed 5.4.0-1037.38
released
bionic
dne
xenial
dne
trusty
dne
linux-gkeop-5.15
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-gkeop-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-hwe
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
Fixed 4.15.0-173.182~16.04.1
released
trusty
dne
linux-hwe-5.11
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.19
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-105.119~18.04.1
released
xenial
dne
trusty
dne
linux-hwe-5.8
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.5
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-edge
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-ibm
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1018.20
released
bionic
dne
xenial
dne
trusty
dne
linux-ibm-5.15
noble
dne
mantic
dne
lunar
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-ibm-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-1018.20~18.04.1
released
xenial
dne
trusty
dne
linux-intel
noble
not-affected
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-intel-iot-realtime
noble
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-iotg
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel-iotg-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-iot
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-kvm
noble
dne
mantic
dne
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1059.62
released
bionic
Fixed 4.15.0-1110.113
released
xenial
not-affected
trusty
dne
linux-laptop
noble
dne
mantic
not-affected
lunar
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-5.19
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.5
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lowlatency-hwe-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
kinetic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
not-affected
linux-nvidia
noble
not-affected
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-nvidia-lowlatency
noble
not-affected
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-oem-5.10
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.14
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.17
kinetic
ignored
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.6
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.0
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.1
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.5
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.8
noble
not-affected
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-osp1
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1067.72
released
bionic
Fixed 4.15.0-1090.99
released
xenial
Fixed 4.15.0-1090.99~16.04.1
released
trusty
dne
linux-oracle-5.0
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.11
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.13
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.15
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-oracle-5.3
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-1067.72~18.04.1
released
xenial
dne
trusty
dne
linux-oracle-5.8
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oracle-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.4.0-1056.63
released
bionic
dne
xenial
dne
trusty
dne
linux-raspi-5.4
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 5.4.0-1056.63~18.04.1
released
xenial
dne
trusty
dne
linux-raspi-realtime
noble
dne
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi2
kinetic
dne
jammy
dne
focal
ignored
bionic
Fixed 4.15.0-1106.113
released
xenial
ignored
trusty
dne
linux-raspi2-5.3
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-realtime
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
ignored
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.11
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.15
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.19
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.8
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.8
noble
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-snapdragon
kinetic
dne
jammy
dne
focal
dne
bionic
Fixed 4.15.0-1123.132
released
xenial
ignored
trusty
dne
linux-starfive
noble
dne
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-5.19
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.2
noble
dne
mantic
dne
lunar
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.5
noble
dne
mantic
dne
jammy
not-affected
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-xilinx-zynqmp
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
not-affected
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=2019643
https://lore.kernel.org/all/20220204100036.GA12348%40kili/
https://bugzilla.redhat.com/show_bug.cgi?id=2019643
https://lore.kernel.org/all/20220204100036.GA12348%40kili/