Use After Free in Linux Kernel
CVE-2022-1055
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
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Linux Kernel — versions 5.16.0, 5.17.0, 5.11.0
- Linux Kernel — versions 5.17
- NetApp H300e
- NetApp H300e Firmware
- NetApp H300s
- NetApp H300s Firmware
- NetApp H410c
- NetApp H410c Firmware
- NetApp H410s
- NetApp H410s Firmware
Weakness classification (CWE)
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- syzkaller.appspot.com/bug (Exploit, Patch, Third Party Advisory)
- kernel.dance/ (Exploit, Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220506-0007/ (Third Party Advisory)
- packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086… (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-1055?
- CVE-2022-1055 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2022-03-29.
- How severe is CVE-2022-1055?
- High severity. CVSS v3 base score is 7.8 out of 10.