CVE-2019-19079
HIGHCVSS 7.5/10EPSS 2.95%
Last modified
CVE-2019-19079 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A memory leak in the qrtr_tun_write_iter() function in net/qrtr/tun.c in the Linux kernel before 5.3 allows attackers to cause a denial of service (memory consumption), aka CID-a21b7f0cff19.. EPSS estimates a 2.95% chance of exploitation in the next 30 days.
Description
A memory leak in the qrtr_tun_write_iter() function in net/qrtr/tun.c in the Linux kernel before 5.3 allows attackers to cause a denial of service (memory consumption), aka CID-a21b7f0cff19.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.18, < 4.19.89 |
| Linux | Linux Kernel | >= 4.20, < 5.3 |
| Canonical | Ubuntu Linux | 18.04 |
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/a21b7f0cff1906a93a0130b74713b15a0b36481dPatch, Tool Signature
- https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
- https://usn.ubuntu.com/4258-1/Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/a21b7f0cff1906a93a0130b74713b15a0b36481dPatch, Tool Signature
- https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
- https://usn.ubuntu.com/4258-1/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-19079?
A memory leak in the qrtr_tun_write_iter() function in net/qrtr/tun.c in the Linux kernel before 5.3 allows attackers to cause a denial of service (memory consumption), aka CID-a21b7f0cff19.
How severe is CVE-2019-19079?
CVE-2019-19079 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.95% probability of exploitation in the next 30 days.
How do I fix CVE-2019-19079?
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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Are you affected by CVE-2019-19079?
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Scan your code nowSource: NVD / NIST