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openSUSE Leap 15.4 libpcap Vulnerability MAC-48 Bounds Exceeded Fix

opensuse
Calendar Grey February 18, 2026
Dist Opensuse Esm H88
Update available for openSUSE systems to address low-severity issues in libpcap involving MAC-48 address validation.
An update that solves one vulnerability can now be installed.

Description

This update for libpcap fixes the following issues:

* CVE-2025-11961: missing validation of provided MAC-48 address string in

`pcap_ether_aton()` can lead to out-of-bounds read and write (bsc#1255765).

Topics%20covered

Topics Covered

security advisory low out-of-bounds libpcap OpenSUSE mac-48

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 15.4

zypper in -t patch SUSE-2026-575=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-575=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-575=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-575=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-575=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-575=1

Package List

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)

* libpcap1-debuginfo-1.10.1-150400.3.9.1

* libpcap1-1.10.1-150400.3.9.1

* libpcap-devel-static-1.10.1-150400.3.9.1

* libpcap-devel-1.10.1-150400.3.9.1

* libpcap-debugsource-1.10.1-150400.3.9.1

* openSUSE Leap 15.4 (x86_64)

* libpcap-devel-32bit-1.10.1-150400.3.9.1

* libpcap1-32bit-debuginfo-1.10.1-150400.3.9.1

* libpcap1-32bit-1.10.1-150400.3.9.1

* openSUSE Leap 15.4 (aarch64_ilp32)

* libpcap-devel-64bit-1.10.1-150400.3.9.1

* libpcap1-64bit-debuginfo-1.10.1-150400.3.9.1

* libpcap1-64bit-1.10.1-150400.3.9.1

* SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)

* libpcap1-debuginfo-1.10.1-150400.3.9.1

* libpcap1-1.10.1-150400.3.9.1

* libpcap-debugsource-1.10.1-150400.3.9.1

* SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)

* libpcap1-debuginfo-1.10.1-150400.3.9.1

* libpcap1-1.10.1-150400.3.9.1

* libpcap-debugsource-1.10.1-150400.3.9.1

* SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)

*...

Read the Full Advisory

References

* bsc#1255765

## References:

* https://www.suse.com/security/cve/CVE-2025-11961.html

* https://bugzilla.suse.com/show_bug.cgi?id=1255765

Severity
low
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0575-1
Release Date: 2026-02-18T09:10:48Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4

Topics%20covered

Topics Covered

security advisory low out-of-bounds libpcap OpenSUSE mac-48

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