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openSUSE: libpcap Low MAC-48 Buffer Overflow 2026:0053-1

opensuse
Calendar Grey January 7, 2026
Dist Opensuse Esm H88
A libpcap update for openSUSE fixes a low severity MAC-48 address validation issue linked to CVE-2025-11961.
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 buffer overflow low libpcap OpenSUSE CVE

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 15.3

zypper in -t patch SUSE-2026-53=1

* SUSE Linux Enterprise Micro 5.2

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-53=1

* SUSE Linux Enterprise Micro for Rancher 5.2

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-53=1

Package List

* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)

* libpcap-devel-static-1.9.1-150300.3.6.1

* libpcap1-1.9.1-150300.3.6.1

* libpcap-devel-1.9.1-150300.3.6.1

* libpcap-debugsource-1.9.1-150300.3.6.1

* libpcap1-debuginfo-1.9.1-150300.3.6.1

* openSUSE Leap 15.3 (x86_64)

* libpcap1-32bit-1.9.1-150300.3.6.1

* libpcap-devel-32bit-1.9.1-150300.3.6.1

* libpcap1-32bit-debuginfo-1.9.1-150300.3.6.1

* openSUSE Leap 15.3 (aarch64_ilp32)

* libpcap-devel-64bit-1.9.1-150300.3.6.1

* libpcap1-64bit-debuginfo-1.9.1-150300.3.6.1

* libpcap1-64bit-1.9.1-150300.3.6.1

* SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)

* libpcap1-debuginfo-1.9.1-150300.3.6.1

* libpcap-debugsource-1.9.1-150300.3.6.1

* libpcap1-1.9.1-150300.3.6.1

* SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)

* libpcap1-debuginfo-1.9.1-150300.3.6.1

* libpcap-debugsource-1.9.1-150300.3.6.1

* libpcap1-1.9.1-150300.3.6.1

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-2026:0053-1
Release Date: 2026-01-07T11:03:53Z
Affected Products: * openSUSE Leap 15.3 * SUSE Linux Enterprise Micro 5.2 * SUSE Linux Enterprise Micro for Rancher 5.2

Topics%20covered

Topics Covered

security advisory buffer overflow low libpcap OpenSUSE CVE

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