Vulnerability · Published Jul 24, 2023 · Assigned by AMD

CVE-2023-20593

Medium 5.5

In plain English

A medium-severity security flaw in 2nd Gen AMD EPYC™ Processors from AMD. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 5.1% (higher than 92% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)5.1%top 7.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Public PoC

Official description

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9bpftool7.0.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8iwl100-firmware39.31.5.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl100-firmware39.31.5.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl1000-firmware1:39.31.5.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl1000-firmware1:39.31.5.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl105-firmware18.168.6.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl105-firmware18.168.6.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl135-firmware18.168.6.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl135-firmware18.168.6.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl2000-firmware18.168.6.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl2000-firmware18.168.6.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl2030-firmware18.168.6.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl2030-firmware18.168.6.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl3160-firmware1:25.30.13.0-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl3160-firmware1:25.30.13.0-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl3945-firmware15.32.2.9-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:8iwl4965-firmware228.61.2.24-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:8iwl5000-firmware8.83.5.1_1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl5000-firmware8.83.5.1_1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl5150-firmware8.24.2.2-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl5150-firmware8.24.2.2-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl6000-firmware9.221.4.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:8iwl6000g2a-firmware18.168.6.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl6000g2a-firmware18.168.6.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl6000g2b-firmware18.168.6.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl6000g2b-firmware18.168.6.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl6050-firmware41.28.5.1-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl6050-firmware41.28.5.1-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8iwl7260-firmware1:25.30.13.0-117.el8_8.1.alma.1ALSA-2023:5245
AlmaLinux:9iwl7260-firmware1:25.30.13.0-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8kernel4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug-devel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug-modules5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-devel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-devel-matched5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-modules5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-modules-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-64k-modules-extra5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-abi-stablelists4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-abi-stablelists5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-core4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-cross-headers4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:8kernel-debug4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-debug5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-debug-core4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-debug-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-debug-devel4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-debug-devel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-debug-devel-matched5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-debug-modules4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-debug-modules5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-debug-modules-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-debug-modules-extra4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-debug-modules-extra5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-debug-uki-virt5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-devel4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-devel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-devel-matched5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-doc4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:8kernel-headers4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:8kernel-modules4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-modules5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-modules-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-modules-extra4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-modules-extra5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-rt5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-core5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug-core5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug-devel5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug-kvm5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug-modules5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-devel5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-kvm5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-modules5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-modules-core5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:9kernel-rt-modules-extra5.14.0-284.30.1.rt14.315.el9_2ALSA-2023:5091
AlmaLinux:8kernel-tools4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-tools5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-tools-libs4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-tools-libs5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-tools-libs-devel4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-tools-libs-devel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-uki-virt5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-zfcpdump4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-zfcpdump5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-zfcpdump-core4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-zfcpdump-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-zfcpdump-devel4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-zfcpdump-devel5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-zfcpdump-modules4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-zfcpdump-modules5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8libertas-sd8686-firmware20230404-117.git2e92a49f.el8_8.alma.1ALSA-2023:5245
AlmaLinux:8libertas-sd8787-firmware20230404-117.git2e92a49f.el8_8.alma.1ALSA-2023:5245
AlmaLinux:9libertas-sd8787-firmware20230310-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8libertas-usb8388-firmware2:20230404-117.git2e92a49f.el8_8.alma.1ALSA-2023:5245
AlmaLinux:8libertas-usb8388-olpc-firmware20230404-117.git2e92a49f.el8_8.alma.1ALSA-2023:5245
AlmaLinux:8linux-firmware20230404-117.git2e92a49f.el8_8.alma.1ALSA-2023:5245
AlmaLinux:9linux-firmware20230310-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:9linux-firmware-whence20230310-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:9netronome-firmware20230310-135.el9_2.alma.1ALSA-2023:5068
AlmaLinux:8perf4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9perf5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:8python3-perf4.18.0-477.27.2.el8_8ALSA-2023:5244
AlmaLinux:9python3-perf5.14.0-284.30.1.el9_2ALSA-2023:5069
AlmaLinux:9rtla5.14.0-284.30.1.el9_2ALSA-2023:5069
Alpine:v3.20xen4.17.1-r3ALPINE-CVE-2023-20593
Alpine:v3.21xen4.17.1-r3ALPINE-CVE-2023-20593
Alpine:v3.22xen4.17.1-r3ALPINE-CVE-2023-20593
Alpine:v3.23xen4.17.1-r3ALPINE-CVE-2023-20593
Alpine:v3.24xen4.17.1-r3ALPINE-CVE-2023-20593
Debian:12amd64-microcode3.20230719.1~deb12u1DSA-5459-1
Debian:12amd64-microcode3.20230719.1~deb12u1DEBIAN-CVE-2023-20593
Debian:13amd64-microcode3.20230719.1DEBIAN-CVE-2023-20593
Debian:14amd64-microcode3.20230719.1DEBIAN-CVE-2023-20593
Debian:12linux6.1.38-2DSA-5462-1
Debian:12linux6.1.38-2DEBIAN-CVE-2023-20593
Debian:13linux6.4.4-2DEBIAN-CVE-2023-20593
Debian:14linux6.4.4-2DEBIAN-CVE-2023-20593
Rocky Linux:8kernel0:4.18.0-477.27.1.el8_8.cloudRXSA-2023:5244
Rocky Linux:8kernel0:4.18.0-477.27.1.el8_8RLSA-2023:5244
Rocky Linux:9kernel-rt0:5.14.0-284.30.1.rt14.315.el9_2RLSA-2023:5091
Ubuntu:22.04:LTSamd64-microcode3.20191218.1ubuntu2.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSamd64-microcode3.20191218.1ubuntu2.1USN-6244-1
Ubuntu:22.04:LTSlinux5.15.0-82.91UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux5.15.0-82.91USN-6315-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-aws5.15.0-1043.48USN-6315-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1043.48UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-aws-6.26.2.0-1010.10~22.04.1USN-6318-1
Ubuntu:22.04:LTSlinux-aws-6.26.2.0-1010.10~22.04.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-azure5.15.0-1045.52UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-azure5.15.0-1045.52USN-6332-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-azure-6.26.2.0-1011.11~22.04.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1045.52.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1045.52.1USN-6332-1
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-gcp5.15.0-1040.48USN-6315-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1040.48UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-gcp-6.26.2.0-1012.12~22.04.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-gke5.15.0-1040.45USN-6315-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1040.45UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1026.31UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1026.31USN-6315-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-hwe-6.26.2.0-31.31~22.04.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-hwe-6.26.2.0-31.31~22.04.1USN-6318-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1036.39USN-6315-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1036.39UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1038.43USN-6325-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1038.43UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-kvm5.15.0-1040.45USN-6315-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1040.45UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-82.91USN-6315-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-82.91UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.26.2.0-1011.11~22.04.1USN-6318-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.26.2.0-1011.11~22.04.1UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1031.31UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1031.31USN-6315-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1017.17UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1004.4UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-oem-6.06.0.0-1021.21USN-6385-1
Ubuntu:22.04:LTSlinux-oem-6.06.0.0-1021.21UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1020.20UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1020.20USN-6316-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1041.47USN-6315-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1041.47UBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-raspi5.15.0-1036.39USN-6348-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1036.39UBUNTU-CVE-2023-20593
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-20593
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-20593

Affected products (as reported)

Weakness: CWE-209

References