#VU33686 Input validation error in SUSE products - CVE-2013-3556

Vulnerability identifier: #VU33686

Vulnerability risk: Medium

CVSSv4.0: 2.7 [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-2013-3556

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Wireshark
Server applications / IDS/IPS systems, Firewalls and proxy servers
Debian Linux
Operating systems & Components / Operating system
Opensuse
Operating systems & Components / Operating system

Vendor: Wireshark.org
Debian
SUSE

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The fragment_add_seq_common function in epan/reassemble.c in the ASN.1 BER dissector in Wireshark before r48943 has an incorrect pointer dereference during a comparison, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.6.0 - 1.6.14, 1.8.0 - 1.8.6

Debian Linux: 1.6.0 - 7.0

Opensuse: 1.6.0 - 12.3

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External links
https://anonsvn.wireshark.org/viewvc/trunk/epan/reassemble.c?r1=48943&r2=48942&pathrev=48943
https://anonsvn.wireshark.org/viewvc?view=revision&revision=48943
https://lists.opensuse.org/opensuse-updates/2013-06/msg00048.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00083.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00194.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00196.html
https://secunia.com/advisories/53425
https://secunia.com/advisories/54425
https://www.gentoo.org/security/en/glsa/glsa-201308-05.xml
https://www.wireshark.org/security/wnpa-sec-2013-25.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8599
https://www.wireshark.org/docs/relnotes/wireshark-1.6.15.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.