DEBIAN-CVE-2026-29009
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.
DEBIAN-CVE-2026-29009
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-29009
u-boot
Source reference: /affected/0/package/name
- Affected versions
- 2023.01+dfsg-2
Source reference:
/affected/0/versions2023.01+dfsg-2+deb12u1Source reference:
/affected/0/versions2023.01+dfsg-2+deb12u2Source reference:
/affected/0/versions2023.01+dfsg-2+deb12u3Source reference:
/affected/0/versions2023.04+dfsg-1Source reference:
/affected/0/versions2023.04~rc2+dfsg-1Source reference:
/affected/0/versions2023.04~rc5+dfsg-1Source reference:
/affected/0/versions2023.07+dfsg-1Source reference:
/affected/0/versions2023.07~rc4+dfsg-1Source reference:
/affected/0/versions2023.07~rc5+dfsg-1Source reference:
/affected/0/versions2024.01+dfsg-1Source reference:
/affected/0/versions2024.01+dfsg-2Source reference:
/affected/0/versions2024.01+dfsg-3Source reference:
/affected/0/versions2024.01+dfsg-4Source reference:
/affected/0/versions2024.01+dfsg-5Source reference:
/affected/0/versions2024.01+dfsg-6Source reference:
/affected/0/versions2024.01+dfsg-7Source reference:
/affected/0/versions2024.01~rc6+dfsg-1Source reference:
/affected/0/versions2024.01~rc6+dfsg-2Source reference:
/affected/0/versions2025.01-1Source reference:
/affected/0/versions2025.01-2Source reference:
/affected/0/versions2025.01-3Source reference:
/affected/0/versions2025.01-3.1Source reference:
/affected/0/versions2025.01-3.2Source reference:
/affected/0/versions2026.10~rc5-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
u-boot
Source reference: /affected/1/package/name
- Affected versions
- 2025.01-3
Source reference:
/affected/1/versions2025.01-3+deb13u1Source reference:
/affected/1/versions2025.01-3.1Source reference:
/affected/1/versions2025.01-3.2Source reference:
/affected/1/versions2026.10~rc5-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
u-boot
Source reference: /affected/2/package/name
- Affected versions
- 2025.01-3
Source reference:
/affected/2/versions2025.01-3.1Source reference:
/affected/2/versions2025.01-3.2Source reference:
/affected/2/versions2026.10~rc5-1Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/debian/u-boot?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2023.01+dfsg-2",
"2023.01+dfsg-2+deb12u1",
"2023.01+dfsg-2+deb12u2",
"2023.01+dfsg-2+deb12u3",
"2023.04+dfsg-1",
"2023.04~rc2+dfsg-1",
"2023.04~rc5+dfsg-1",
"2023.07+dfsg-1",
"2023.07~rc4+dfsg-1",
"2023.07~rc5+dfsg-1",
"2024.01+dfsg-1",
"2024.01+dfsg-2",
"2024.01+dfsg-3",
"2024.01+dfsg-4",
"2024.01+dfsg-5",
"2024.01+dfsg-6",
"2024.01+dfsg-7",
"2024.01~rc6+dfsg-1",
"2024.01~rc6+dfsg-2",
"2025.01-1",
"2025.01-2",
"2025.01-3",
"2025.01-3.1",
"2025.01-3.2",
"2026.10~rc5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29009.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/debian/u-boot?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2025.01-3",
"2025.01-3+deb13u1",
"2025.01-3.1",
"2025.01-3.2",
"2026.10~rc5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29009.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "u-boot",
"purl": "pkg:deb/debian/u-boot?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2025.01-3",
"2025.01-3.1",
"2025.01-3.2",
"2026.10~rc5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-29009.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56714 · Revision 1
- Added to Heist Feed
- Publisher date