| 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-2024-56627: ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read |
| |
| An offset from client could be a negative value, It could lead |
| to an out-of-bounds read from the stream_buf. |
| Note that this issue is coming when setting |
| 'vfs objects = streams_xattr parameter' in ksmbd.conf. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56627 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 5.15.176 with commit 6bd1bf0e8c42f10a9a9679a4c103a9032d30594d |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.1.120 with commit de4d790dcf53be41736239d7ee63849a16ff5d10 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.6.66 with commit 27de4295522e9a33e4a3fc72f7b8193df9eebe41 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.12.5 with commit 81eed631935f2c52cdaf6691c6d48e0b06e8ad73 |
| Issue introduced in 5.15 with commit 0626e6641f6b467447c81dd7678a69c66f7746cf and fixed in 6.13 with commit fc342cf86e2dc4d2edb0fc2ff5e28b6c7845adb9 |
| |
| 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-2024-56627 |
| 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/6bd1bf0e8c42f10a9a9679a4c103a9032d30594d |
| https://git.kernel.org/stable/c/de4d790dcf53be41736239d7ee63849a16ff5d10 |
| https://git.kernel.org/stable/c/27de4295522e9a33e4a3fc72f7b8193df9eebe41 |
| https://git.kernel.org/stable/c/81eed631935f2c52cdaf6691c6d48e0b06e8ad73 |
| https://git.kernel.org/stable/c/fc342cf86e2dc4d2edb0fc2ff5e28b6c7845adb9 |
