| 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-2024-56626: ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write |
| |
| An offset from client could be a negative value, It could allows |
| to write data outside the bounds of the allocated buffer. |
| Note that this issue is coming when setting |
| 'vfs objects = streams_xattr parameter' in ksmbd.conf. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56626 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 5.15.176 with commit 1aea5c9470be2c7129704fb1b9562b1e3e0576f8 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.1.120 with commit 8cd7490fc0f268883e86e840cda5311257af69ca |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.6.66 with commit 164d3597d26d9acff5d5b8bc3208bdcca942dd6a |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.12.5 with commit c5797f195c67132d061d29c57a7c6d30530686f0 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.13 with commit 313dab082289e460391c82d855430ec8a28ddf81 |
| |
| 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-2024-56626 |
| 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/smb/server/smb2pdu.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/1aea5c9470be2c7129704fb1b9562b1e3e0576f8 |
| https://git.kernel.org/stable/c/8cd7490fc0f268883e86e840cda5311257af69ca |
| https://git.kernel.org/stable/c/164d3597d26d9acff5d5b8bc3208bdcca942dd6a |
| https://git.kernel.org/stable/c/c5797f195c67132d061d29c57a7c6d30530686f0 |
| https://git.kernel.org/stable/c/313dab082289e460391c82d855430ec8a28ddf81 |
