Vulnerability · Published Nov 23, 2022 · Assigned by Google
CVE-2022-42895Info Leak in l2cap_core in the Linux Kernel
Medium 5.1
In plain English
A medium-severity security flaw in Linux Kernel from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.1Medium
Exploit odds (30 days)0.5%top 58.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
There is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url
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 | 6.0.7-1 | DEBIAN-CVE-2022-42895 |
| Debian:13 | linux | 6.0.7-1 | DEBIAN-CVE-2022-42895 |
| Debian:14 | linux | 6.0.7-1 | DEBIAN-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux | 5.15.0-60.66 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux | 5.15.0-60.66 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1030.34 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1030.34 | USN-5876-1 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1033.40 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1033.40 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1033.40.1 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1033.40.1 | USN-5876-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1029.36 | USN-5876-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1029.36 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1027.32 | USN-5860-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1027.32 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1015.19 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1015.19 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 5.19.0-32.33~22.04.1 | USN-5879-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 5.19.0-32.33~22.04.1 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1025.28 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1025.28 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1025.30 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1025.30 | USN-5876-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1028.33 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1028.33 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-60.66 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-60.66 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1017.17 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1027.28 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1027.28 | USN-5858-1 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1008.8 | USN-5780-1 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1008.8 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1029.35 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1029.35 | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1024.26 | USN-5851-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1024.26 | UBUNTU-CVE-2022-42895 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-42895 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2022-42895 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 3.0.0 – through b1a2cd50c0357f243b7435a732b4e62ba3157a2e |
Weakness: CWE-824 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N