| 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-2024-54456: NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client() |
| |
| name is char[64] where the size of clnt->cl_program->name remains |
| unknown. Invoking strcat() directly will also lead to potential buffer |
| overflow. Change them to strscpy() and strncat() to fix potential |
| issues. |
| |
| The Linux kernel CVE team has assigned CVE-2024-54456 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.3 with commit 996bc4f405d37ffd88c9b830202ee47fc7a6c449 and fixed in 6.6.79 with commit 19b3ca651b4b473878c73539febe477905041442 |
| Issue introduced in 5.3 with commit 996bc4f405d37ffd88c9b830202ee47fc7a6c449 and fixed in 6.12.16 with commit dd8830779b77f4d1206d28d02ad56a03fc0e78f7 |
| Issue introduced in 5.3 with commit 996bc4f405d37ffd88c9b830202ee47fc7a6c449 and fixed in 6.13.4 with commit e8e0eb5601d4a6c74c336e3710afe3a0348c469d |
| Issue introduced in 5.3 with commit 996bc4f405d37ffd88c9b830202ee47fc7a6c449 and fixed in 6.14 with commit 49fd4e34751e90e6df009b70cd0659dc839e7ca8 |
| |
| 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-2024-54456 |
| 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/nfs/sysfs.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/19b3ca651b4b473878c73539febe477905041442 |
| https://git.kernel.org/stable/c/dd8830779b77f4d1206d28d02ad56a03fc0e78f7 |
| https://git.kernel.org/stable/c/e8e0eb5601d4a6c74c336e3710afe3a0348c469d |
| https://git.kernel.org/stable/c/49fd4e34751e90e6df009b70cd0659dc839e7ca8 |
