CVE-2024-26988
Description
In the Linux kernel, the following vulnerability has been resolved: init/main.c: Fix potential static_command_line memory overflow We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for static_command_line, but the strings copied into static_command_line are extra_command_line and command_line, rather than extra_command_line and boot_command_line. When strlen(command_line) > strlen(boot_command_line), static_command_line will overflow. This patch just recovers strlen(command_line) which was miss-consolidated with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add checks for the return value of memblock_alloc*()")
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2024-26988
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2024-26988.html
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2024:9315
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.90-1 |
| debian | bullseye | fixed | 5.10.216-1 |
| debian | forky | fixed | 6.8.9-1 |
| debian | sid | fixed | 6.8.9-1 |
| debian | trixie | fixed | 6.8.9-1 |
| debian | 10.0 | affected | |
| linux-kernel | affected | 5.10.216 | |
| linux-kernel | 6.9 | affected | |
| fedora | 38 | affected | |
| fedora | 39 | affected | |
| fedora | 40 | affected | |
References
- https://access.redhat.com/errata/RHSA-2024:9315
- https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4
- https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a
- https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9
- https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea
- https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8
- https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- https://www.suse.com/security/cve/CVE-2024-26988.html
- https://security-tracker.debian.org/tracker/CVE-2024-26988
CWEs
CWE-787
Verify integrity in audit chain (admin only). AS-IS.