| 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-2024-50185: mptcp: handle consistently DSS corruption |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mptcp: handle consistently DSS corruption |
| |
| Bugged peer implementation can send corrupted DSS options, consistently |
| hitting a few warning in the data path. Use DEBUG_NET assertions, to |
| avoid the splat on some builds and handle consistently the error, dumping |
| related MIBs and performing fallback and/or reset according to the |
| subflow type. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50185 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.7 with commit 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 and fixed in 5.10.228 with commit fde99e972b8f88cebe619241d7aa43d288ef666a |
| Issue introduced in 5.7 with commit 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 and fixed in 5.15.169 with commit 12c1676d598e3b8dd92a033b623b792cc2ea1ec5 |
| Issue introduced in 5.7 with commit 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 and fixed in 6.1.113 with commit 35668f8ec84f6c944676e48ecc6bbc5fc8e6fe25 |
| Issue introduced in 5.7 with commit 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 and fixed in 6.6.57 with commit b8be15d1ae7ea4eedd547c3b3141f592fbddcd30 |
| Issue introduced in 5.7 with commit 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 and fixed in 6.11.4 with commit 8bfd391bde685df7289b928ce8876a3583be4bfb |
| Issue introduced in 5.7 with commit 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 and fixed in 6.12 with commit e32d262c89e2b22cb0640223f953b548617ed8a6 |
| |
| 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-2024-50185 |
| 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/mptcp/mib.c |
| net/mptcp/mib.h |
| net/mptcp/protocol.c |
| net/mptcp/subflow.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/fde99e972b8f88cebe619241d7aa43d288ef666a |
| https://git.kernel.org/stable/c/12c1676d598e3b8dd92a033b623b792cc2ea1ec5 |
| https://git.kernel.org/stable/c/35668f8ec84f6c944676e48ecc6bbc5fc8e6fe25 |
| https://git.kernel.org/stable/c/b8be15d1ae7ea4eedd547c3b3141f592fbddcd30 |
| https://git.kernel.org/stable/c/8bfd391bde685df7289b928ce8876a3583be4bfb |
| https://git.kernel.org/stable/c/e32d262c89e2b22cb0640223f953b548617ed8a6 |
