| 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-2024-26753: crypto: virtio/akcipher - Fix stack overflow on memcpy |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| crypto: virtio/akcipher - Fix stack overflow on memcpy |
| |
| sizeof(struct virtio_crypto_akcipher_session_para) is less than |
| sizeof(struct virtio_crypto_op_ctrl_req::u), copying more bytes from |
| stack variable leads stack overflow. Clang reports this issue by |
| commands: |
| make -j CC=clang-14 mrproper >/dev/null 2>&1 |
| make -j O=/tmp/crypto-build CC=clang-14 allmodconfig >/dev/null 2>&1 |
| make -j O=/tmp/crypto-build W=1 CC=clang-14 drivers/crypto/virtio/ |
| virtio_crypto_akcipher_algs.o |
| |
| The Linux kernel CVE team has assigned CVE-2024-26753 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10.209 with commit 1ff57428894fc4f5001d3df0762c1820295d6c4f and fixed in 5.10.212 with commit 37077ed16c7793e21b005979d33f8a61565b7e86 |
| Issue introduced in 5.18 with commit 59ca6c93387d325e96577d8bd4c23c78c1491c11 and fixed in 6.1.80 with commit 62f361bfea60c6afc3df09c1ad4152e6507f6f47 |
| Issue introduced in 5.18 with commit 59ca6c93387d325e96577d8bd4c23c78c1491c11 and fixed in 6.6.19 with commit b0365460e945e1117b47cf7329d86de752daff63 |
| Issue introduced in 5.18 with commit 59ca6c93387d325e96577d8bd4c23c78c1491c11 and fixed in 6.7.7 with commit ef1e47d50324e232d2da484fe55a54274eeb9bc1 |
| Issue introduced in 5.18 with commit 59ca6c93387d325e96577d8bd4c23c78c1491c11 and fixed in 6.8 with commit c0ec2a712daf133d9996a8a1b7ee2d4996080363 |
| |
| 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-2024-26753 |
| 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/crypto/virtio/virtio_crypto_akcipher_algs.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/37077ed16c7793e21b005979d33f8a61565b7e86 |
| https://git.kernel.org/stable/c/62f361bfea60c6afc3df09c1ad4152e6507f6f47 |
| https://git.kernel.org/stable/c/b0365460e945e1117b47cf7329d86de752daff63 |
| https://git.kernel.org/stable/c/ef1e47d50324e232d2da484fe55a54274eeb9bc1 |
| https://git.kernel.org/stable/c/c0ec2a712daf133d9996a8a1b7ee2d4996080363 |
