TI-2025-10967 Aliases CVE-2025-11961 GHSA-x25x-vjrm-h7qq

OOBR and OOBW in pcap_ether_aton() in libpcap

LOW 9CWE-122Published 2025-12-31 · Updated 2026-01-02

Key facts

Attack vector: Local
Privileges required: High
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: Partial Red Hat: 6 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00117 1st percentileScored 2026-11-07

Fix Partial libpcap (The Tcpdump Group): 1.10.6Red Hat: 6 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
The Tcpdump Group	libpcap	before 1.10.6	1.10.6	Patch available	CNA

libpcap VendorThe Tcpdump Group Affected before 1.10.6 Fixed in 1.10.6 Patch available CNA

Remediation

Fix · CNA libpcap (The Tcpdump Group) Fixed in 1.10.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-12-31
The Tcpdump Group libpcap 1.10.6
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-10970 OOBW in utf_16le_to_utf_8_truncated() in libpcapPriority LOW 9
Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 4	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2025-11961
2026-10-03 Alias added: GHSA-x25x-vjrm-h7qq

References

Patch 1

https://github.com/the-tcpdump-group/libpcap/commit/b2d2f9a9a0581c40780bde509f7cc715920f1c02

TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
TI-2004-00159 Integer underflow in the isakmp_id_print for TCPDUMP 3.8.1 and earlier allows remote… CVSS 2.0MEDIUM 5.0
TI-2018-10700 The BGP parser in tcpdump before 4.9.3 has a buffer over-read in… CVSS 3.1CRITICAL 9.8
TI-2017-09693 The RPKI-Router parser in tcpdump before 4.9.2 has a buffer over-read in print-rpki-rtr.c:rpki_rtr_pdu_print(). CVSS 3.1CRITICAL 9.8
TI-2017-09684 The ICMPv6 parser in tcpdump before 4.9.2 has a buffer over-read in print-icmp6.c:icmp6_nodeinfo_print(). CVSS 3.1CRITICAL 9.8
TI-2017-09683 The MPTCP parser in tcpdump before 4.9.2 has a buffer over-read in print-mptcp.c, several functions. CVSS 3.1CRITICAL 9.8

See all 190 →

Sources

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