Vulnerability · Published Jul 27, 2022 · Assigned by mitre
CVE-2022-36946
High 7.5
In plain English
A high-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 8.9% (higher than 95% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)8.9%top 4.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | bpftool | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-core | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-core | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-debug | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-devel | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-doc | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-doc | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-headers | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-headers | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-modules | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-modules | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-rt | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-debug-kvm | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-kvm | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-kvm | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-kvm | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-162.6.1.rt21.168.el9_1 | ALSA-2022:7933 |
| AlmaLinux:8 | kernel-tools | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-tools | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | perf | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | perf | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| AlmaLinux:8 | python3-perf | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | python3-perf | 5.14.0-162.6.1.el9_1 | ALSA-2022:8267 |
| Debian:12 | linux | 5.18.16-1 | DEBIAN-CVE-2022-36946 |
| Debian:13 | linux | 5.18.16-1 | DEBIAN-CVE-2022-36946 |
| Debian:14 | linux | 5.18.16-1 | DEBIAN-CVE-2022-36946 |
| Rocky Linux:8 | kernel | 0:4.18.0-425.3.1.el8 | RLSA-2022:7683 |
| Rocky Linux:8 | kernel-rt | 0:4.18.0-425.3.1.rt7.213.el8 | RLSA-2022:7444 |
| Ubuntu:22.04:LTS | linux | 5.15.0-48.54 | USN-5624-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-48.54 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1020.24 | USN-5624-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1020.24 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1020.25 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1020.25 | USN-5624-1 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1024.30.1 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1018.24 | USN-5633-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1018.24 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1016.19 | USN-5633-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1016.19 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1003.5 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1003.5 | USN-5635-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1015.17 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1015.17 | USN-5683-1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1016.21 | USN-5655-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1016.21 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1018.22 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1018.22 | USN-5624-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-48.54 | USN-5624-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-48.54 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1007.7 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1017.18 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1017.18 | USN-5634-1 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1018.23 | USN-5640-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1018.23 | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1015.17 | USN-5633-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1015.17 | UBUNTU-CVE-2022-36946 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-36946 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1019.22 | UBUNTU-CVE-2022-36946 |
Affected products (as reported)
References
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2
- DSA-5207 vendor-advisory
- https://security.netapp.com/advisory/ntap-20220901-0007/
- [debian-lts-announce] 20220911 [SECURITY] [DLA 3102-1] linux-5.10 new package mailing-list
- [debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update mailing-list
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
- https://cert-portal.siemens.com/productcert/html/ssa-419740.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-942865.html
- https://cert-portal.siemens.com/productcert/html/ssa-561322.html