Description
epan/dissectors/packet-ntlmssp.c in the NTLMSSP dissector in Wireshark before 1.4.4 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted .pcap file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wireshark | 1.4.4-1 | — |
| Debian 13 | wireshark | 1.4.4-1 | — |
| Debian 12 | wireshark | 1.4.4-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | wireshark +2 | 1.2.15-2.el6_2.1 | RHSA-2012:0509 |
| RHEL 5 | wireshark +1 | 1.0.15-1.el5_6.4 | RHSA-2011:0370 |
| RHEL 4 | wireshark +1 | 1.0.15-2.el4 | RHSA-2011:0370 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 2.2.2-1.1 | openSUSE-SU-2024:10199-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Wireshark 1.4.3 - NTLMSSP Null Pointer Dereference Denial of Service EDB-35432 · dos · Mar 1, 2011 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- RHSA-2012:0509 Red Hat Security Advisory: wireshark security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2011:0370 Red Hat Security Advisory: wireshark security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2024:10199-1 wireshark-2.2.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5157
- openSUSE-SU-2011:0347 vendor-advisory
- 43759 third-party-advisory
- FEDORA-2011-2648 vendor-advisory
- FEDORA-2011-2620 vendor-advisory
- 44169 third-party-advisory
- ADV-2011-0626 vdb-entry
- 48947 third-party-advisory
- VU#215900 third-party-advisory
- RHSA-2011:0370 vendor-advisory
- ADV-2011-0719 vdb-entry
- oval:org.mitre.oval:def:16209 vdb-entry signature
- http://www.wireshark.org/docs/relnotes/wireshark-1.4.4.html
- FEDORA-2011-2632 vendor-advisory
- 46796 vdb-entry
- http://anonsvn.wireshark.org/viewvc?view=rev&revision=34018
- 1025148 vdb-entry
- 43821 third-party-advisory