Input validation error in Wireshark - CVE-2012-6056
Published: December 5, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43260
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-6056
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Wireshark.org
Affected software:
Wireshark
Wireshark
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
How to mitigate CVE-2012-6056
Install update from vendor's website.
Sources
- http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-sctp.c?r1=45355&r2=45354&pathrev=45355
- http://anonsvn.wireshark.org/viewvc?view=revision&revision=45355
- http://lists.opensuse.org/opensuse-updates/2012-12/msg00022.html
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00042.html
- http://rhn.redhat.com/errata/RHSA-2014-0341.html
- http://www.wireshark.org/security/wnpa-sec-2012-33.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7802
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16139