CVE-2020-36385
HIGHCVSS 7.8/10EPSS 1.48%
Last modified
CVE-2020-36385 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.
Description
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 5.10 | — |
| 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 | — |
| Starwindsoftware | Starwind San \& Nas | v8r12 | — |
| Starwindsoftware | Starwind Virtual San | v8 | Build14338 |
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10Release Notes, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210720-0004/Third Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2Patch, Third Party Advisory
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6Patch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20220802-0002/Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10Release Notes, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210720-0004/Third Party Advisory
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-ucma_close-2Patch, Third Party Advisory
- https://syzkaller.appspot.com/bug?id=457491c4672d7b52c1007db213d93e47c711fae6Patch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20220802-0002/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-36385?
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
How severe is CVE-2020-36385?
CVE-2020-36385 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.
How do I fix CVE-2020-36385?
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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