Auth bypass in Linux Kernel
CVE-2022-30594
The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag.
Vulnerability class: Broken Access Control
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: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2 (Patch, Mailing List, Vendor Advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Exploit, Patch, Mailing List, Third Party Advisory)
- github.com/torvalds/linux/commit/ee1fee900537b5d9560e9f937402de5ddc8412f3 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)
- packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086… (VDB Entry, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/07/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5173 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220707-0001/ (Third Party Advisory)
- packetstormsecurity.com/files/170362/Linux-PT_SUSPEND_SECCOMP-Permission-Bypass… (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-30594?
- CVE-2022-30594 is a high-severity vulnerability in Linux Kernel, classified under Missing Authorization. CVSS score: 7.8/10. Published 2022-05-12.
- How severe is CVE-2022-30594?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-30594 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.