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openSUSE Tackling an Urgent Heap Overflow Vulnerability in Busybox Update

opensuse
Calendar Grey May 25, 2026
Dist Opensuse Esm H88
Critical update for busybox released on 2026-05-25 addresses CVE-2026-29004. Immediate actions recommended.
An update that solves one vulnerability can now be installed.

Description

This update for busybox fixes the following issue

* CVE-2026-29004: Heap buffer overflow vulnerability in the DHCPv6 client

(udhcpc6) DNS_SERVERS option handler in networking/udhcp/d6_dhcpc.c

(bsc#1263989).

Topics%20covered

Topics Covered

security advisory important heap overflow busybox OpenSUSE cve-2026-29004

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.5

zypper in -t patch SUSE-2026-2053=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2053=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2053=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2053=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2053=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2053=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2053=1

Package List

* openSUSE Leap 15.5 (noarch)

* busybox-hexedit-1.37.0-150500.7.13.1

* busybox-links-1.37.0-150500.7.13.1

* busybox-iproute2-1.37.0-150500.7.13.1

* busybox-coreutils-1.37.0-150500.7.13.1

* busybox-less-1.37.0-150500.7.13.1

* busybox-gawk-1.37.0-150500.7.13.1

* busybox-misc-1.37.0-150500.7.13.1

* busybox-man-1.37.0-150500.7.13.1

* busybox-sha3sum-1.37.0-150500.7.13.1

* busybox-tunctl-1.37.0-150500.7.13.1

* busybox-whois-1.37.0-150500.7.13.1

* busybox-sh-1.37.0-150500.7.13.1

* busybox-unzip-1.37.0-150500.7.13.1

* busybox-iputils-1.37.0-150500.7.13.1

* busybox-net-tools-1.37.0-150500.7.13.1

* busybox-vi-1.37.0-150500.7.13.1

* busybox-netcat-1.37.0-150500.7.13.1

* busybox-kmod-1.37.0-150500.7.13.1

* busybox-xz-1.37.0-150500.7.13.1

* busybox-psmisc-1.37.0-150500.7.13.1

* busybox-telnet-1.37.0-150500.7.13.1

* busybox-cpio-1.37.0-150500.7.13.1

* busybox-bind-utils-1.37.0-150500.7.13.1

* busybox-procps-1.37.0-150500.7.13.1

* busybox-sysvinit-tools-1.37.0-150500.7.13.1

* busybox-util-linux-1.37.0-150500.7.13.1

*...

Read the Full Advisory

References

* bsc#1263989

## References:

* https://www.suse.com/security/cve/CVE-2026-29004.html

* https://bugzilla.suse.com/show_bug.cgi?id=1263989

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2053-1
Release Date: 2026-05-25T14:01:54Z
Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory important heap overflow busybox OpenSUSE cve-2026-29004

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