| 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-2024-27016: netfilter: flowtable: validate pppoe header |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| netfilter: flowtable: validate pppoe header |
| |
| Ensure there is sufficient room to access the protocol field of the |
| PPPoe header. Validate it once before the flowtable lookup, then use a |
| helper function to access protocol field. |
| |
| The Linux kernel CVE team has assigned CVE-2024-27016 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit 72efd585f7144a047f7da63864284764596ccad9 and fixed in 5.15.157 with commit d06977b9a4109f8738bb276125eb6a0b772bc433 |
| Issue introduced in 5.13 with commit 72efd585f7144a047f7da63864284764596ccad9 and fixed in 6.1.88 with commit 8bf7c76a2a207ca2b4cfda0a279192adf27678d7 |
| Issue introduced in 5.13 with commit 72efd585f7144a047f7da63864284764596ccad9 and fixed in 6.6.29 with commit a2471d271042ea18e8a6babc132a8716bb2f08b9 |
| Issue introduced in 5.13 with commit 72efd585f7144a047f7da63864284764596ccad9 and fixed in 6.8.8 with commit cf366ee3bc1b7d1c76a882640ba3b3f8f1039163 |
| Issue introduced in 5.13 with commit 72efd585f7144a047f7da63864284764596ccad9 and fixed in 6.9 with commit 87b3593bed1868b2d9fe096c01bcdf0ea86cbebf |
| |
| 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-2024-27016 |
| 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_flow_table.h |
| net/netfilter/nf_flow_table_inet.c |
| net/netfilter/nf_flow_table_ip.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/d06977b9a4109f8738bb276125eb6a0b772bc433 |
| https://git.kernel.org/stable/c/8bf7c76a2a207ca2b4cfda0a279192adf27678d7 |
| https://git.kernel.org/stable/c/a2471d271042ea18e8a6babc132a8716bb2f08b9 |
| https://git.kernel.org/stable/c/cf366ee3bc1b7d1c76a882640ba3b3f8f1039163 |
| https://git.kernel.org/stable/c/87b3593bed1868b2d9fe096c01bcdf0ea86cbebf |
