| 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-2025-37998: openvswitch: Fix unsafe attribute parsing in output_userspace() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| openvswitch: Fix unsafe attribute parsing in output_userspace() |
| |
| This patch replaces the manual Netlink attribute iteration in |
| output_userspace() with nla_for_each_nested(), which ensures that only |
| well-formed attributes are processed. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37998 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 5.4.294 with commit 6712dc21506738f5f22b4f68b7c0d9e0df819dbd |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 5.10.238 with commit 06b4f110c79716c181a8c5da007c259807840232 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 5.15.183 with commit 47f7f00cf2fa3137d5c0416ef1a71bdf77901395 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.1.139 with commit bca8df998cce1fead8cbc69144862eadc2e34c87 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.6.91 with commit 0236742bd959332181c1fcc41a05b7b709180501 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.12.29 with commit ec334aaab74705cc515205e1da3cb369fdfd93cd |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.14.7 with commit 4fa672cbce9c86c3efb8621df1ae580d47813430 |
| Issue introduced in 3.3 with commit ccb1352e76cff0524e7ccb2074826a092dd13016 and fixed in 6.15 with commit 6beb6835c1fbb3f676aebb51a5fee6b77fed9308 |
| |
| 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-2025-37998 |
| 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/actions.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/6712dc21506738f5f22b4f68b7c0d9e0df819dbd |
| https://git.kernel.org/stable/c/06b4f110c79716c181a8c5da007c259807840232 |
| https://git.kernel.org/stable/c/47f7f00cf2fa3137d5c0416ef1a71bdf77901395 |
| https://git.kernel.org/stable/c/bca8df998cce1fead8cbc69144862eadc2e34c87 |
| https://git.kernel.org/stable/c/0236742bd959332181c1fcc41a05b7b709180501 |
| https://git.kernel.org/stable/c/ec334aaab74705cc515205e1da3cb369fdfd93cd |
| https://git.kernel.org/stable/c/4fa672cbce9c86c3efb8621df1ae580d47813430 |
| https://git.kernel.org/stable/c/6beb6835c1fbb3f676aebb51a5fee6b77fed9308 |
