| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action |
| |
| 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. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37789 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 5.4.293 with commit 54c6957d1123a2032099b9eab51c314800f677ce |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 5.10.237 with commit 7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 5.15.181 with commit a27526e6b48eee9e2d82efff502c4f272f1a91d4 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.1.135 with commit 1489c195c8eecd262aa6712761ba5288203e28ec |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.6.88 with commit 824a7c2df5127b2402b68a21a265d413e78dcad7 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.12.25 with commit be80768d4f3b6fd13f421451cc3fee8778aba8bc |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.14.4 with commit 03d7262dd53e8c404da35cc81aaa887fd901f76b |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.15 with commit 65d91192aa66f05710cfddf6a14b5a25ee554dba |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-37789 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| net/openvswitch/flow_netlink.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce |
| https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd |
| https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4 |
| https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec |
| https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7 |
| https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bc |
| https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b |
| https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dba |
