Description
Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count.
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 | 1.8.6-1 | — |
| Debian 13 | wireshark | 1.8.6-1 | — |
| Debian 12 | wireshark | 1.8.6-1 | — |
| Debian 7 | wireshark | 1.12.1+g01b65bf-4+deb8u6~deb7u1 | DLA-497-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | wireshark +2 | 1.8.10-4.el6 | RHSA-2013:1569 |
| RHEL 5 | wireshark +1 | 1.0.15-6.el5_10 | RHSA-2014:0341 |
Advisories 3
- RHSA-2014:0341 Red Hat Security Advisory: wireshark security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2013:1569 Red Hat Security Advisory: wireshark security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-497-1 wireshark - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- RHSA-2014:0341 vendor-advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7802
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=45355
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-sctp.c?r1=45355&r2=45354&pathrev=45355
- openSUSE-SU-2012:1633 vendor-advisory
- openSUSE-SU-2013:0151 vendor-advisory
- http://www.wireshark.org/security/wnpa-sec-2012-33.html
- oval:org.mitre.oval:def:16139 vdb-entry signature