| 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-2024-50180: fbdev: sisfb: Fix strbuf array overflow |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| fbdev: sisfb: Fix strbuf array overflow |
| |
| The values of the variables xres and yres are placed in strbuf. |
| These variables are obtained from strbuf1. |
| The strbuf1 array contains digit characters |
| and a space if the array contains non-digit characters. |
| Then, when executing sprintf(strbuf, "%ux%ux8", xres, yres); |
| more than 16 bytes will be written to strbuf. |
| It is suggested to increase the size of the strbuf array to 24. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50180 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.323 with commit 433c84c8495008922534c5cafdae6ff970fb3241 |
| Fixed in 5.4.285 with commit 57c4f4db0a194416da237fd09dad9527e00cb587 |
| Fixed in 5.10.227 with commit 252f147b1826cbb30ae0304cf86b66d3bb12b743 |
| Fixed in 5.15.168 with commit 41cf6f26abe4f491b694c54bd1aa2530369b7510 |
| Fixed in 6.1.113 with commit 889304120ecb2ca30674d89cd4ef15990b6a571c |
| Fixed in 6.6.57 with commit 688872c4ea4a528cd6a057d545c83506b533ee1f |
| Fixed in 6.11.4 with commit 11c0d49093b82f6c547fd419c41a982d26bdf5ef |
| Fixed in 6.12 with commit 9cf14f5a2746c19455ce9cb44341b5527b5e19c3 |
| |
| 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-2024-50180 |
| 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/video/fbdev/sis/sis_main.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/433c84c8495008922534c5cafdae6ff970fb3241 |
| https://git.kernel.org/stable/c/57c4f4db0a194416da237fd09dad9527e00cb587 |
| https://git.kernel.org/stable/c/252f147b1826cbb30ae0304cf86b66d3bb12b743 |
| https://git.kernel.org/stable/c/41cf6f26abe4f491b694c54bd1aa2530369b7510 |
| https://git.kernel.org/stable/c/889304120ecb2ca30674d89cd4ef15990b6a571c |
| https://git.kernel.org/stable/c/688872c4ea4a528cd6a057d545c83506b533ee1f |
| https://git.kernel.org/stable/c/11c0d49093b82f6c547fd419c41a982d26bdf5ef |
| https://git.kernel.org/stable/c/9cf14f5a2746c19455ce9cb44341b5527b5e19c3 |
