Description
epan/dissectors/packet-tcp.c in the TCP dissector in Wireshark 1.8.x before 1.8.11 and 1.10.x before 1.10.3 does not properly determine the amount of remaining data, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.
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 | 1.10.3-1 | — |
| Debian 13 | wireshark | 1.10.3-1 | — |
| Debian 12 | wireshark | 1.10.3-1 | — |
| Debian 7 | wireshark | 1.8.2-5wheezy7 | DSA-2792-1 |
| Debian 6.0 | wireshark | 1.2.11-6+squeeze13 | DSA-2792-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | wireshark +2 | 1.8.10-7.el6_5 | RHSA-2014:0342 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 2.2.2-1.1 | openSUSE-SU-2024:10199-1 |
Advisories 3
- RHSA-2014:0342 Red Hat Security Advisory: wireshark security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2792-1 wireshark - several Debian Security (DSA / DLA) · Mar 9, 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=9263
- openSUSE-SU-2013:1675 vendor-advisory
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=52570
- DSA-2792 vendor-advisory
- openSUSE-SU-2013:1671 vendor-advisory
- http://www.wireshark.org/security/wnpa-sec-2013-65.html
- RHSA-2014:0342 vendor-advisory
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-tcp.c?r1=52570&r2=52569&pathrev=52570
- oval:org.mitre.oval:def:19298 vdb-entry signature