CVE-2026-29009
U-Boot before 2026.07-rc2 contains a buffer overflow vulnerability in ...
Sévérité par source
Le label propre à Trivy est CRITICAL. Critique selon NVD.
Description
U-Boot before 2026.07-rc2 contains a buffer overflow vulnerability in nfs_readlink_reply() (net/nfs-common.c) when CONFIG_CMD_NFS is enabled, allowing a malicious or compromised NFS server to overflow the 2048-byte nfs_path_buff buffer by returning multiple relative symlink targets that are appended without cumulative length validation. Attackers can send two or more READLINK responses containing relative symlink targets of approximately 1100 bytes each to corrupt adjacent BSS variables including nfs_server_ip, nfs_server_mount_port, nfs_server_port, nfs_our_port, nfs_state, and rpc_id, potentially achieving memory corruption and control over the NFS client state machine.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| debian 11 | u-boot | pas de correctif indiqué |
| debian 12 | u-boot | pas de correctif indiqué |
| debian 13 | u-boot | pas de correctif indiqué |
| debian 14 | u-boot | pas de correctif indiqué |
| echo | u-boot | pas de correctif indiqué |
| rapidfort alpine 3.20 | u-boot | 2026.07-r0 |
| rapidfort alpine 3.21 | u-boot | 2026.07-r0 |
| rapidfort alpine 3.22 | u-boot | 2026.07-r0 |
| rapidfort alpine 3.23 | u-boot | 2026.07-r0 |
| rapidfort alpine 3.24 | u-boot | 2026.07-r0 |
| rapidfort debian 12 | u-boot | pas de correctif indiqué |
| rapidfort debian 13 | u-boot | pas de correctif indiqué |
Références
- https://git.u-boot-project.org/u-boot/u-boot/-/commit/d6694018eaddefac6aae974f9cec72fd6e58f1bc
- https://git.u-boot-project.org/u-boot/u-boot/-/releases/v2026.07-rc2
- https://lists.denx.de/pipermail/u-boot/2026-May/617853.html
- https://u-boot.org/
- https://www.vulncheck.com/advisories/u-boot-rc3-buffer-overflow-in-nfs-readlink-reply-via-nfs-readlink
- https://y637f9qq2x.com/posts/u-boot-tcp-nfs-vulns/