CVE-2013-4930

Description

The dissect_dvbci_tpdu_hdr function in epan/dissectors/packet-dvbci.c in the DVB-CI dissector in Wireshark 1.8.x before 1.8.9 and 1.10.x before 1.10.1 does not validate a certain length value before decrementing it, which allows remote attackers to cause a denial of service (assertion failure and application exit) via a crafted packet.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.15% Top 25%
Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory wireshark.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/54371 third party advisory
http://lists.opensuse.org/opensuse-updates/2013-08/msg00009.html vendor advisory
https://www.wireshark.org/security/wnpa-sec-2013-48.html vendor advisory
http://secunia.com/advisories/54178 third party advisory
http://secunia.com/advisories/54425 third party advisory
http://www.debian.org/security/2013/dsa-2734 vendor advisory
http://www.wireshark.org/docs/relnotes/wireshark-1.10.1.html
http://www.gentoo.org/security/en/glsa/glsa-201308-05.xml vendor advisory
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8916
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16929 signature vdb entry
http://lists.opensuse.org/opensuse-updates/2013-08/msg00004.html vendor advisory
http://secunia.com/advisories/54296 third party advisory
http://anonsvn.wireshark.org/viewvc?view=revision&revision=50474 patch
http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-dvbci.c?r1=50474&r2=50473&pathrev=50474 patch
http://www.wireshark.org/docs/relnotes/wireshark-1.8.9.html

Frequently Asked Questions

What is the severity of CVE-2013-4930?
CVE-2013-4930 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4930?
To fix CVE-2013-4930, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4930 being actively exploited in the wild?
It is possible that CVE-2013-4930 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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