CVE-2022-29581
HIGHCVSS 7.8/10EPSS 1.03%
Last modified
CVE-2022-29581 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.
Description
Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.14, < 4.14.278 |
| Linux | Linux Kernel | >= 4.15, < 4.19.241 |
| Linux | Linux Kernel | >= 4.20, < 5.4.191 |
| Linux | Linux Kernel | >= 5.5, < 5.10.113 |
| Linux | Linux Kernel | >= 5.11, < 5.15.36 |
| Linux | Linux Kernel | >= 5.16, < 5.17.5 |
| Debian | Debian Linux | 10.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Canonical | Ubuntu Linux | 22.04 |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H300e Firmware | All versions |
| Netapp | H500e Firmware | All versions |
| Netapp | H700e Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Netapp | H410c Firmware | All versions |
References
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.htmlExploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2022/05/18/2Mailing List, Patch, Third Party Advisory
- https://kernel.dance/#3db09e762dc79584a69c10d74a6b98f89a9979f8Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220629-0005/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5173Third Party Advisory
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.htmlExploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2022/05/18/2Mailing List, Patch, Third Party Advisory
- https://kernel.dance/#3db09e762dc79584a69c10d74a6b98f89a9979f8Patch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220629-0005/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5173Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-29581?
Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.
How severe is CVE-2022-29581?
CVE-2022-29581 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.
How do I fix CVE-2022-29581?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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