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2 vulnerabilities by vda-linux
CVE-2026-29004 (GCVE-0-2026-29004)
Vulnerability from nvd – Published: 2026-05-04 18:05 – Updated: 2026-06-30 12:07 X_Open Source
VLAI
Title
BusyBox DHCPv6 Client Heap Buffer Overflow via DNS_SERVERS
Summary
BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sending a crafted DHCPv6 response with a malformed D6_OPT_DNS_SERVERS option. Attackers can exploit incorrect heap buffer allocation calculations in the option_to_env() function to cause denial of service or achieve arbitrary code execution on embedded systems without heap hardening.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://y637f9qq2x.com/posts/busybox-dhcpv6-heap-… | technical-descriptionexploit |
| https://github.com/vda-linux/busybox_mirror/commi… | patch |
| https://github.com/vda-linux/busybox_mirror/commi… | patch |
| https://busybox.net/ | product |
| https://www.vulncheck.com/advisories/busybox-dhcp… | third-party-advisory |
| https://access.redhat.com/security/cve/CVE-2026-29004 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2466526 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:30652 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| vda-linux | busybox_mirror |
Affected:
0 , < 42202bfb1e6ac51fa995beda8be4d7b654aeee2a
(git)
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
Date Public
2026-03-12 00:00
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CVE-2026-29004 (GCVE-0-2026-29004)
Vulnerability from cvelistv5 – Published: 2026-05-04 18:05 – Updated: 2026-06-30 12:07 X_Open Source
VLAI
Title
BusyBox DHCPv6 Client Heap Buffer Overflow via DNS_SERVERS
Summary
BusyBox before commit 42202bf contains a heap buffer overflow vulnerability in the DHCPv6 client (udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c that allows network-adjacent attackers to trigger memory corruption by sending a crafted DHCPv6 response with a malformed D6_OPT_DNS_SERVERS option. Attackers can exploit incorrect heap buffer allocation calculations in the option_to_env() function to cause denial of service or achieve arbitrary code execution on embedded systems without heap hardening.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://y637f9qq2x.com/posts/busybox-dhcpv6-heap-… | technical-descriptionexploit |
| https://github.com/vda-linux/busybox_mirror/commi… | patch |
| https://github.com/vda-linux/busybox_mirror/commi… | patch |
| https://busybox.net/ | product |
| https://www.vulncheck.com/advisories/busybox-dhcp… | third-party-advisory |
| https://access.redhat.com/security/cve/CVE-2026-29004 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2466526 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:30652 | vendor-advisoryx_refsource_REDHAT |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| vda-linux | busybox_mirror |
Affected:
0 , < 42202bfb1e6ac51fa995beda8be4d7b654aeee2a
(git)
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
Date Public
2026-03-12 00:00
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-29004",
"datePublished": "2026-05-04T18:05:18.962Z",
"dateReserved": "2026-03-03T16:42:01.012Z",
"dateUpdated": "2026-06-30T12:07:54.385Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}