CVE-2018-20855
LOWCVSS 3.3/10EPSS 0.46%
Last modified
CVE-2018-20855 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
Description
An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.18.7 |
| Opensuse | Leap | 15.0 |
| Opensuse | Leap | 15.1 |
| Netapp | Active Iq Performance Analytics Services | All versions |
| Netapp | Active Iq Unified Manager | >= 9.5 |
| Netapp | Data Availability Services | All versions |
| Netapp | Element Software | All versions |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.htmlThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7Mailing List, Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190905-0002/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.htmlThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7Mailing List, Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190905-0002/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-20855?
An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.
How severe is CVE-2018-20855?
CVE-2018-20855 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20855?
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-2018-20855?
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