Input validation error in Wireshark

1) Input validation error

EUVDB-ID: #VU33908

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-2481

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

Integer signedness error in the dissect_mount_dirpath_call function in epan/dissectors/packet-mount.c in the Mount dissector in Wireshark 1.6.x before 1.6.14 and 1.8.x before 1.8.6, when nfs_file_name_snooping is enabled, allows remote attackers to cause a denial of service (application crash) via a negative length value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.6.0 - 1.6.13

CPE2.3

• cpe:2.3:a:wireshark_org:wireshark:1.6.13:*:*:*:*:*:*:*

External links

https://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-mount.c?r1=47672&r2=47671&pathrev=47672
https://anonsvn.wireshark.org/viewvc?view=revision&revision=47672
https://lists.opensuse.org/opensuse-updates/2013-03/msg00065.html
https://lists.opensuse.org/opensuse-updates/2013-03/msg00077.html
https://secunia.com/advisories/52471
https://www.debian.org/security/2013/dsa-2644
https://www.wireshark.org/docs/relnotes/wireshark-1.6.14.html
https://www.wireshark.org/docs/relnotes/wireshark-1.8.6.html
https://www.wireshark.org/security/wnpa-sec-2013-16.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8335
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16420

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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