| 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-2023-52669: crypto: s390/aes - Fix buffer overread in CTR mode |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| crypto: s390/aes - Fix buffer overread in CTR mode |
| |
| When processing the last block, the s390 ctr code will always read |
| a whole block, even if there isn't a whole block of data left. Fix |
| this by using the actual length left and copy it into a buffer first |
| for processing. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52669 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.0 with commit 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f and fixed in 5.10.210 with commit cd51e26a3b89706beec64f2d8296cfb1c34e0c79 |
| Issue introduced in 3.0 with commit 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f and fixed in 5.15.149 with commit a7f580cdb42ec3d53bbb7c4e4335a98423703285 |
| Issue introduced in 3.0 with commit 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f and fixed in 6.1.76 with commit dbc9a791a70ea47be9f2acf251700fe254a2ab23 |
| Issue introduced in 3.0 with commit 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f and fixed in 6.6.15 with commit d68ac38895e84446848b7647ab9458d54cacba3e |
| Issue introduced in 3.0 with commit 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f and fixed in 6.7.3 with commit e78f1a43e72daf77705ad5b9946de66fc708b874 |
| Issue introduced in 3.0 with commit 0200f3ecc19660bebeabbcbaf212957fcf1dbf8f and fixed in 6.8 with commit d07f951903fa9922c375b8ab1ce81b18a0034e3b |
| |
| 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-2023-52669 |
| 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: |
| arch/s390/crypto/aes_s390.c |
| arch/s390/crypto/paes_s390.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/cd51e26a3b89706beec64f2d8296cfb1c34e0c79 |
| https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285 |
| https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23 |
| https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3e |
| https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874 |
| https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3b |
