Vulnerability · Published Mar 29, 2022 · Assigned by Google
CVE-2022-1055Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel
High 8.6
In plain English
A high-severity use-after-free in Kernel from Linux. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)8.6High
Exploit odds (30 days)0.5%top 56.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A use-after-free exists in the Linux Kernel in tc_new_tfilter that could allow a local attacker to gain privilege escalation. The exploit requires unprivileged user namespaces. We recommend upgrading past commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5
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 | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-core | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-core | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-debug | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-devel | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-doc | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-doc | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-headers | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-headers | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-modules | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-modules | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-rt | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-debug-kvm | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-kvm | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| 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 | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-kvm | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-kvm | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-425.3.1.rt7.213.el8 | ALSA-2022:7444 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-70.22.1.rt21.94.el9_0 | ALSA-2022:6002 |
| AlmaLinux:8 | kernel-tools | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-tools | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | perf | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | perf | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| AlmaLinux:8 | python3-perf | 4.18.0-425.3.1.el8 | ALSA-2022:7683 |
| AlmaLinux:9 | python3-perf | 5.14.0-70.22.1.el9_0 | ALSA-2022:6003 |
| Debian:12 | linux | 5.16.7-1 | DEBIAN-CVE-2022-1055 |
| Debian:13 | linux | 5.16.7-1 | DEBIAN-CVE-2022-1055 |
| Debian:14 | linux | 5.16.7-1 | DEBIAN-CVE-2022-1055 |
| 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-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-1055 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-1055 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-1055 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 x_refsource_MISC
- https://syzkaller.appspot.com/bug?id=2212474c958978ab86525fe6832ac8102c309ffc x_refsource_MISC
- https://kernel.dance/#04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220506-0007/ x_refsource_CONFIRM
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html x_refsource_MISC