| 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-2024-35823: vt: fix unicode buffer corruption when deleting characters |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| vt: fix unicode buffer corruption when deleting characters |
| |
| This is the same issue that was fixed for the VGA text buffer in commit |
| 39cdb68c64d8 ("vt: fix memory overlapping when deleting chars in the |
| buffer"). The cure is also the same i.e. replace memcpy() with memmove() |
| due to the overlaping buffers. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35823 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 4.19.312 with commit fc7dfe3d123f00e720be80b920da287810a1f37d |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 5.4.274 with commit ff7342090c1e8c5a37015c89822a68b275b46f8a |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 5.10.215 with commit 1ce408f75ccf1e25b3fddef75cca878b55f2ac90 |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 5.15.154 with commit 0190d19d7651c08abc187dac3819c61b726e7e3f |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 6.1.84 with commit 994a1e583c0c206c8ca7d03334a65b79f4d8bc51 |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 6.6.24 with commit 7529cbd8b5f6697b369803fe1533612c039cabda |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 6.7.12 with commit 2933b1e4757a0a5c689cf48d80b1a2a85f237ff1 |
| Issue introduced in 3.7 with commit 81732c3b2fede049a692e58a7ceabb6d18ffb18c and fixed in 6.8 with commit 1581dafaf0d34bc9c428a794a22110d7046d186d |
| |
| 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-2024-35823 |
| 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/tty/vt/vt.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/fc7dfe3d123f00e720be80b920da287810a1f37d |
| https://git.kernel.org/stable/c/ff7342090c1e8c5a37015c89822a68b275b46f8a |
| https://git.kernel.org/stable/c/1ce408f75ccf1e25b3fddef75cca878b55f2ac90 |
| https://git.kernel.org/stable/c/0190d19d7651c08abc187dac3819c61b726e7e3f |
| https://git.kernel.org/stable/c/994a1e583c0c206c8ca7d03334a65b79f4d8bc51 |
| https://git.kernel.org/stable/c/7529cbd8b5f6697b369803fe1533612c039cabda |
| https://git.kernel.org/stable/c/2933b1e4757a0a5c689cf48d80b1a2a85f237ff1 |
| https://git.kernel.org/stable/c/1581dafaf0d34bc9c428a794a22110d7046d186d |
