CVE-2012-6056 json
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…
published 2012-12-05 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5930
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.7%
- EPSS 2.7% chance of exploitation in 30 days, percentile 85%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- wireshark Debian 14, Debian 13, Debian 12 1.8.6-1
debian advisories DEBIAN-CVE-2012-6056
- wireshark RHEL 5 1.0.15-6.el5_10
- wireshark-gnome RHEL 5 1.0.15-6.el5_10
- wireshark RHEL 6 1.8.10-4.el6
- wireshark-gnome RHEL 6 1.8.10-4.el6
red hat advisories RHSA-2014:0341RHSA-2013:1569
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2012-6056 updated cvss 4.3
wireshark: DoS (infinite loop) in the SCTP dissector (wnpa-sec-2012-33)
-
Red Hat Enterprise Linux (v. 5 server) wireshark 1.0.15-6.el5_10, wireshark-gnome 1.0.15-6.el5_10 Red Hat Enterprise Linux Desktop (v. 5 client) wireshark 1.0.15-6.el5_10fixed: vendor fix RHSA-2014:0341
-
Red Hat Enterprise Linux Desktop (v. 6) wireshark 1.8.10-4.el6, wireshark-gnome 1.8.10-4.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) wireshark 1.8.10-4.el6fixed: vendor fix RHSA-2013:1569
-
Red Hat Enterprise Linux Desktop Workstation (v. 5 client) wireshark 1.0.15-6.el5_10, wireshark-gnome 1.0.15-6.el5_10fixed: vendor fix RHSA-2014:0341
-
Red Hat Enterprise Linux Server (v. 6) wireshark 1.8.10-4.el6, wireshark-gnome 1.8.10-4.el6 Red Hat Enterprise Linux Server Optional (v. 6) wireshark 1.8.10-4.el6 Red Hat Enterprise Linux Workstation (v. 6) wireshark 1.8.10-4.el6, wireshark-gnome 1.8.10-4.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) wireshark 1.8.10-4.el6fixed: vendor fix RHSA-2013:1569
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
2.66% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-189 Numeric Errors
References
-
anonsvn.wireshark.org
/viewvc/trunk/epan/dissectors/packet-sctp.c?r1=45355&r2=45354&pathrev=45355
patch
-
rhn.redhat.com
/errata/RHSA-2014-0341.html
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2012-12/msg00022.html
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2013-01/msg00042.html
vendor-advisory
-
wireshark.org
/security/wnpa-sec-2012-33.html
vendor-advisory
- bugs.wireshark.org /bugzilla/show_bug.cgi?id=7802
- anonsvn.wireshark.org /viewvc?view=revision&revision=45355
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16139
vdb-entry, signature
Sources
- CVE List CVE-2012-6056
- NVD CVE-2012-6056
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.