CVE-2024-39480

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: kdb: Fix buffer overflow during tab-complete Currently, when the user attempts symbol completion with the Tab key, kdb will use strncpy() to insert the completed symbol into the command buffer. Unfortunately it passes the size of the source buffer rather than the destination to strncpy() with predictably horrible results. Most obviously if the command buffer is already full but cp, the cursor position, is in the middle of the buffer, then we will write past the end of the supplied buffer. Fix this by replacing the dubious s...

Affected product and versions

Product

Linux Linux, linux_kernel, linux kernel

Affected versions

>= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < fb824a99e148ff272a53d71d84122728b5f00992, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < ddd2972d8e2dee3b33e8121669d55def59f0be8a, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < cfdc2fa4db57503bc6d3817240547c8ddc55fa96, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < f636a40834d22e5e3fc748f060211879c056cd33, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < 33d9c814652b971461d1e30bead6792851c209e7, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < 107e825cc448b7834b31e8b1b3cf0f57426d46d5, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < f694da720dcf795dc3eb97bf76d220213f76aaa7, >= 5d5314d6795f3c1c0f415348ff8c51f7de042b77 < e9730744bf3af04cda23799029342aa3cddbc454, >= 2.6.35, >= 1da177e4c3f4 < fb824a99e148, >= 1da177e4c3f4 < ddd2972d8e2d, >= 1da177e4c3f4 < cfdc2fa4db57, >= 1da177e4c3f4 < f636a40834d2, >= 1da177e4c3f4 < 33d9c814652b, >= 1da177e4c3f4 < 107e825cc448, >= 1da177e4c3f4 < f694da720dcf, >= 1da177e4c3f4 < e9730744bf3a, >= 4.19 < 4.19.316, >= 5.4 < 5.4.278, >= 5.10 < 5.10.219

Fixed versions

4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.34, 6.9.5

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120, CWE-121