| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-27017: netfilter: nft_set_pipapo: walk over current view on netlink dump |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| netfilter: nft_set_pipapo: walk over current view on netlink dump |
| |
| The generation mask can be updated while netlink dump is in progress. |
| The pipapo set backend walk iterator cannot rely on it to infer what |
| view of the datastructure is to be used. Add notation to specify if user |
| wants to read/update the set. |
| |
| Based on patch from Florian Westphal. |
| |
| The Linux kernel CVE team has assigned CVE-2024-27017 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10.186 with commit 2a90da8e0dd50f42e577988f4219f4f4cd3616b7 and fixed in 5.10.227 with commit ff89db14c63a827066446460e39226c0688ef786 |
| Issue introduced in 5.15.119 with commit 45eb6944d0f55102229115de040ef3a48841434a and fixed in 5.15.168 with commit ce9fef54c5ec9912a0c9a47bac3195cc41b14679 |
| Issue introduced in 6.1.36 with commit 0d836f917520300a8725a5dbdad4406438d0cead and fixed in 6.1.112 with commit 52735a010f37580b3a569a996f878fdd87425650 |
| Issue introduced in 6.4 with commit 2b84e215f87443c74ac0aa7f76bb172d43a87033 and fixed in 6.6.53 with commit f24d8abc2bb8cbf31ec713336e402eafa8f42f60 |
| Issue introduced in 6.4 with commit 2b84e215f87443c74ac0aa7f76bb172d43a87033 and fixed in 6.8.8 with commit 721715655c72640567e8742567520c99801148ed |
| Issue introduced in 6.4 with commit 2b84e215f87443c74ac0aa7f76bb172d43a87033 and fixed in 6.9 with commit 29b359cf6d95fd60730533f7f10464e95bd17c73 |
| Issue introduced in 6.3.10 with commit f661383b5f1aaac3fe121b91e04332944bc90193 |
| |
| 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-2024-27017 |
| 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: |
| include/net/netfilter/nf_tables.h |
| net/netfilter/nf_tables_api.c |
| net/netfilter/nft_set_pipapo.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/ff89db14c63a827066446460e39226c0688ef786 |
| https://git.kernel.org/stable/c/ce9fef54c5ec9912a0c9a47bac3195cc41b14679 |
| https://git.kernel.org/stable/c/52735a010f37580b3a569a996f878fdd87425650 |
| https://git.kernel.org/stable/c/f24d8abc2bb8cbf31ec713336e402eafa8f42f60 |
| https://git.kernel.org/stable/c/721715655c72640567e8742567520c99801148ed |
| https://git.kernel.org/stable/c/29b359cf6d95fd60730533f7f10464e95bd17c73 |
