openSUSE: libpcap Low MAC-48 Buffer Overflow 2026:0053-1
opensuse
January 7, 2026
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 Covered
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
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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 Covered
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