Vulnerability · Published Apr 24, 2023 · Assigned by mitre
CVE-2023-31084
Medium 5.5
In plain English
A medium-severity security flaw in the bpftool package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.4%top 64.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-doc | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | python3-perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| Debian:12 | linux | 6.1.37-1 | DEBIAN-CVE-2023-31084 |
| Debian:12 | linux | 6.1.37-1 | DSA-5448-1 |
| Debian:13 | linux | 6.3.7-1 | DEBIAN-CVE-2023-31084 |
| Debian:14 | linux | 6.3.7-1 | DEBIAN-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux | 5.15.0-83.92 | USN-6339-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-83.92 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1044.49 | USN-6350-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1044.49 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1011.11~22.04.1 | USN-6338-1 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1011.11~22.04.1 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1046.53 | USN-6339-3 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1046.53 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1046.53.1 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1046.53.1 | USN-6339-3 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1041.49 | USN-6339-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1041.49 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1013.13~22.04.1 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1013.13~22.04.1 | USN-6338-2 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1041.46 | USN-6351-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1041.46 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1027.32 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1027.32 | USN-6351-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-32.32~22.04.1 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-32.32~22.04.1 | USN-6338-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1037.40 | USN-6339-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1037.40 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1039.45 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1039.45 | USN-6339-4 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1041.46 | USN-6339-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1041.46 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-83.92 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-83.92 | USN-6339-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1012.12~22.04.1 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1012.12~22.04.1 | USN-6338-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1032.32 | USN-6339-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1032.32 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1010.10 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1017.17 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1004.4 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1016.16 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1016.16 | USN-6231-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1042.48 | USN-6350-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1042.48 | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1037.40 | USN-6339-3 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1037.40 | UBUNTU-CVE-2023-31084 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-31084 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1025.29 | UBUNTU-CVE-2023-31084 |
Affected products (as reported)
Weakness: CWE-833 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://lore.kernel.org/all/CA+UBctCu7fXn4q41O_3=id1+OdyQ85tZY1x+TkT-6OVBL6KAUw%40mail.gmail.com/
- FEDORA-2023-75b22000cd vendor-advisory
- FEDORA-2023-4426b7005f vendor-advisory
- DSA-5448 vendor-advisory
- [debian-lts-announce] 20230727 [SECURITY] [DLA 3508-1] linux security update mailing-list
- DSA-5480 vendor-advisory
- https://security.netapp.com/advisory/ntap-20230929-0003/
- [debian-lts-announce] 20231019 [SECURITY] [DLA 3623-1] linux-5.10 security update mailing-list
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b8c75e4a1b325ea0a9433fa8834be97b5836b946