CVE-2025-37997
Last modified
CVE-2025-37997 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_bucket_end() which gave back the start and end hash bucket values belonging to a given region lock and ahash_region() which should give back the region lock belonging to a given hash bucket. The latter was incorrect which can lead to a race condition between the garbage collector and adding new elements when a hash type of set is defined with timeouts.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_bucket_end() which gave back the start and end hash bucket values belonging to a given region lock and ahash_region() which should give back the region lock belonging to a given hash bucket. The latter was incorrect which can lead to a race condition between the garbage collector and adding new elements when a hash type of set is defined with timeouts.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 5.4.24, < 5.4.294 | — |
| Linux | Linux Kernel | >= 5.5.8, < 5.6 | — |
| Linux | Linux Kernel | >= 5.6.1, < 5.10.238 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.183 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.139 | — |
| Linux | Linux Kernel | >= 6.2, < 6.6.91 | — |
| Linux | Linux Kernel | >= 6.7, < 6.12.29 | — |
| Linux | Linux Kernel | >= 6.13, < 6.14.7 | — |
| Linux | Linux Kernel | 5.6 | — |
| Linux | Linux Kernel | 6.15 | Rc1 |
| Debian | Debian Linux | 11.0 | — |
References
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-37997?
How severe is CVE-2025-37997?
How do I fix CVE-2025-37997?
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.
Related CVEs from 2025
- CVE-2025-37991In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-37992In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-37993In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-37994In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-37995In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-37996In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-37998In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-37999In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-3800A vulnerability has been found in WCMS 11 and classified as …9.8
- CVE-2025-38000In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-38001In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-38002In the Linux kernel, the following vulnerability has been re…5.5
Are you affected by CVE-2025-37997?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST