| 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-2023-52974: scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress |
| |
| If during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails, |
| userspace could be accessing the host's ipaddress attr. If we then free the |
| session via iscsi_session_teardown() while userspace is still accessing the |
| session we will hit a use after free bug. |
| |
| Set the tcp_sw_host->session after we have completed session creation and |
| can no longer fail. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52974 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.14.306 with commit 496af9d3682ed4c28fb734342a09e6cc0c056ea4 |
| Fixed in 4.19.273 with commit 6abd4698f4c8a78e7bbfc421205c060c199554a0 |
| Fixed in 5.4.232 with commit d4d765f4761f9e3a2d62992f825aeee593bcb6b9 |
| Fixed in 5.10.168 with commit 9758ffe1c07b86aefd7ca8e40d9a461293427ca0 |
| Fixed in 5.15.93 with commit 0aaabdb900c7415caa2006ef580322f7eac5f6b6 |
| Fixed in 6.1.11 with commit 61e43ebfd243bcbad11be26bd921723027b77441 |
| Fixed in 6.2 with commit f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3 |
| |
| 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-2023-52974 |
| 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: |
| drivers/scsi/iscsi_tcp.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/496af9d3682ed4c28fb734342a09e6cc0c056ea4 |
| https://git.kernel.org/stable/c/6abd4698f4c8a78e7bbfc421205c060c199554a0 |
| https://git.kernel.org/stable/c/d4d765f4761f9e3a2d62992f825aeee593bcb6b9 |
| https://git.kernel.org/stable/c/9758ffe1c07b86aefd7ca8e40d9a461293427ca0 |
| https://git.kernel.org/stable/c/0aaabdb900c7415caa2006ef580322f7eac5f6b6 |
| https://git.kernel.org/stable/c/61e43ebfd243bcbad11be26bd921723027b77441 |
| https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3 |
