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openSUSE Leap 16.0 net-tools Moderate Buffer Overflow Vulnerability 20437-1

opensuse
Calendar Grey April 2, 2026
Dist Opensuse Esm H88
Update for openSUSE Leap 16.0 patches a moderate issue in net-tools addressing a buffer overflow vulnerability.
An update that solves one vulnerability and has 6 bug fixes can now be installed.

Description

This update for net-tools fixes the following issues:

- Fix stack buffer overflow in parse_hex (bsc#1248687, GHSA-h667-qrp8-gj58).

- Fix stack-based buffer overflow in proc_gen_fmt (bsc#1248687, GHSA-w7jq-cmw2-cq59).

- Avoid unsafe memcpy in ifconfig (bsc#1248687).

- Prevent overflow in ax25 and netrom (bsc#1248687)

- Keep possibility to enter long interface names, even if they are

not accepted by the kernel, because it was always possible up to

CVE-2025-46836 fix. But issue a warning about an interface name

concatenation (bsc#1248410).

Patch instructions:

To install this openSUSE security 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 16.0

zypper in -t patch openSUSE-Leap-16.0-454=1

Topics%20covered

Topics Covered

security advisory moderate update buffer overflow net-tools OpenSUSE

Patch

Package List

- openSUSE Leap 16.0:

net-tools-2.10-160000.3.1

net-tools-deprecated-2.10-160000.3.1

net-tools-lang-2.10-160000.3.1

References

* bsc#1243581

* bsc#1248410

* bsc#1248687

* bsc#142461

* bsc#430864

* bsc#544339

References:

* https://www.suse.com/security/cve/CVE-2025-46836.html

Announcement ID: openSUSE-SU-2026:20437-1
Rating: moderate
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory moderate update buffer overflow net-tools OpenSUSE

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