| 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-2024-53146: NFSD: Prevent a potential integer overflow |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| NFSD: Prevent a potential integer overflow |
| |
| If the tag length is >= U32_MAX - 3 then the "length + 4" addition |
| can result in an integer overflow. Address this by splitting the |
| decoding into several steps so that decode_cb_compound4res() does |
| not have to perform arithmetic on the unsafe length value. |
| |
| The Linux kernel CVE team has assigned CVE-2024-53146 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.325 with commit 745f7ce5a95e783ba62fe774325829466aec2aa8 |
| Fixed in 5.4.287 with commit 90adbae9dd158da8331d9fdd32077bd1af04f553 |
| Fixed in 5.10.231 with commit 3c5f545c9a1f8a1869246f6f3ae8c17289d6a841 |
| Fixed in 5.15.174 with commit 842f1c27a1aef5367e535f9e85c8c3b06352151a |
| Fixed in 6.1.120 with commit de53c5305184ca1333b87e695d329d1502d694ce |
| Fixed in 6.6.64 with commit dde654cad08fdaac370febb161ec41eb58e9d2a2 |
| Fixed in 6.11.11 with commit 084f797dbc7e52209a4ab6dbc7f0109268754eb9 |
| Fixed in 6.12.2 with commit ccd3394f9a7200d6b088553bf38e688620cd27af |
| Fixed in 6.13 with commit 7f33b92e5b18e904a481e6e208486da43e4dc841 |
| |
| 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-2024-53146 |
| 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: |
| fs/nfsd/nfs4callback.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/745f7ce5a95e783ba62fe774325829466aec2aa8 |
| https://git.kernel.org/stable/c/90adbae9dd158da8331d9fdd32077bd1af04f553 |
| https://git.kernel.org/stable/c/3c5f545c9a1f8a1869246f6f3ae8c17289d6a841 |
| https://git.kernel.org/stable/c/842f1c27a1aef5367e535f9e85c8c3b06352151a |
| https://git.kernel.org/stable/c/de53c5305184ca1333b87e695d329d1502d694ce |
| https://git.kernel.org/stable/c/dde654cad08fdaac370febb161ec41eb58e9d2a2 |
| https://git.kernel.org/stable/c/084f797dbc7e52209a4ab6dbc7f0109268754eb9 |
| https://git.kernel.org/stable/c/ccd3394f9a7200d6b088553bf38e688620cd27af |
| https://git.kernel.org/stable/c/7f33b92e5b18e904a481e6e208486da43e4dc841 |
