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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2023-52832wifi: mac80211: don't return unset power in ieee80211_get_tx_power()

Critical 9.1

In plain English

A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)1.3%top 30.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't return unset power in ieee80211_get_tx_power() We can get a UBSAN warning if ieee80211_get_tx_power() returns the INT_MIN value mac80211 internally uses for "unset power level". UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5 -2147483648 * 100 cannot be represented in type 'int' CPU: 0 PID: 20433 Comm: insmod Tainted: G WC OE Call Trace: dump_stack+0x74/0x92 ubsan_epilogue+0x9/0x50 handle_overflow+0x8d/0xd0 __ubsan_handle_mul_overflow+0xe/0x10 nl80211_send_iface+0x688/0x6b0 [cfg80211] [...] cfg80211_register_wdev+0x78/0xb0 [cfg80211] cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211] [...] ieee80211_if_add+0x60e/0x8f0 [mac80211] ieee80211_register_hw+0xda5/0x1170 [mac80211] In this case, simply return an error instead, to indicate that no data is available.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-abi-stablelists4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-core4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-cross-headers4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-core4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-modules4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-doc4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-headers4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-modules4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-modules-extra4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-rt4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-core4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-core4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-kvm4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-devel4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-kvm4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-modules4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.16.1.rt7.357.el8_10ALSA-2024:5102
AlmaLinux:8kernel-tools4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-tools-libs4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8perf4.18.0-553.16.1.el8_10ALSA-2024:5101
AlmaLinux:8python3-perf4.18.0-553.16.1.el8_10ALSA-2024:5101
Debian:12linux6.1.64-1DEBIAN-CVE-2023-52832
Debian:13linux6.6.8-1DEBIAN-CVE-2023-52832
Debian:14linux6.6.8-1DEBIAN-CVE-2023-52832
Rocky Linux:8kernel0:4.18.0-553.16.1.el8_10.cloud.0.1RXSA-2024:5101
Rocky Linux:8kernel0:4.18.0-553.16.1.el8_10RLSA-2024:5101
Rocky Linux:8kernel-rt0:4.18.0-553.16.1.rt7.357.el8_10RLSA-2024:5102
Ubuntu:22.04:LTSlinux5.15.0-100.110UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-aws5.15.0-1056.61UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure5.15.0-1058.66UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1058.66.1UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-gcp5.15.0-1053.61UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-gke5.15.0-1052.57UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1038.44UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-ibm5.15.0-1048.51UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1050.56UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-kvm5.15.0-1052.57UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-100.110UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1046.46UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1014.14UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1025.25UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1012.12UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-oracle5.15.0-1053.59UBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-raspi5.15.0-1048.51UBUNTU-CVE-2023-52832
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-52832
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2023-52832

Affected products (as reported)

VendorProductVersions
Linux Linux db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – before 717de20abdcd1d4993fa450e28b8086a352620eadb6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – before 21a0f310a9f3bfd2b4cf4f382430e638607db846db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – before 2be24c47ac19bf639c48c082486c08888bd603c6db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – before adc2474d823fe81d8da759207f4f1d3691aa775adb6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – before 5a94cffe90e20e8fade0b9abd4370bd671fe87c7db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – before e160ab85166e77347d0cbe5149045cb25e83937f
Linux Linux 5.7

Weakness: CWE-920 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References