| 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-2022-49269: can: isotp: sanitize CAN ID checks in isotp_bind() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| can: isotp: sanitize CAN ID checks in isotp_bind() |
| |
| Syzbot created an environment that lead to a state machine status that |
| can not be reached with a compliant CAN ID address configuration. |
| The provided address information consisted of CAN ID 0x6000001 and 0xC28001 |
| which both boil down to 11 bit CAN IDs 0x001 in sending and receiving. |
| |
| Sanitize the SFF/EFF CAN ID values before performing the address checks. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49269 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10 with commit e057dd3fc20ffb3d7f150af46542a51b59b90127 and fixed in 5.10.110 with commit d72866a7f5326160d2a9d945a33eb6ef1883e25d |
| Issue introduced in 5.10 with commit e057dd3fc20ffb3d7f150af46542a51b59b90127 and fixed in 5.15.33 with commit f343dbe82314ab457153c9afd970be4e9e553020 |
| Issue introduced in 5.10 with commit e057dd3fc20ffb3d7f150af46542a51b59b90127 and fixed in 5.16.19 with commit cf522d741f5301223cc94b978eb1603c7590d65e |
| Issue introduced in 5.10 with commit e057dd3fc20ffb3d7f150af46542a51b59b90127 and fixed in 5.17.2 with commit 7b4652fc71dcec043977a6def80ef5034c913615 |
| Issue introduced in 5.10 with commit e057dd3fc20ffb3d7f150af46542a51b59b90127 and fixed in 5.18 with commit 3ea566422cbde9610c2734980d1286ab681bb40e |
| |
| 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-2022-49269 |
| 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/can/isotp.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/d72866a7f5326160d2a9d945a33eb6ef1883e25d |
| https://git.kernel.org/stable/c/f343dbe82314ab457153c9afd970be4e9e553020 |
| https://git.kernel.org/stable/c/cf522d741f5301223cc94b978eb1603c7590d65e |
| https://git.kernel.org/stable/c/7b4652fc71dcec043977a6def80ef5034c913615 |
| https://git.kernel.org/stable/c/3ea566422cbde9610c2734980d1286ab681bb40e |
