CVE-2025-37789
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76bPatch
- https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ecPatch
- https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677cePatch
- https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dbaPatch
- https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bdPatch
- https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7Patch
- https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4Patch
- https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bcPatch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.