NULL pointer dereference in net-snmp.sourceforge.net Net-snmp

1) NULL pointer dereference

EUVDB-ID: #VU33298

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-2285

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via an empty community string in an SNMP trap, which triggers a NULL pointer dereference within the newSVpv function in Perl.

Mitigation

Update to version 5.7.3.pre4.

Vulnerable software versions

Net-snmp: 5.7.3.pre3

External links

http://comments.gmane.org/gmane.comp.security.oss.general/12284
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://lists.opensuse.org/opensuse-updates/2014-03/msg00060.html
http://lists.opensuse.org/opensuse-updates/2014-03/msg00061.html
http://secunia.com/advisories/59974
http://sourceforge.net/p/net-snmp/patches/1275/
http://www.gentoo.org/security/en/glsa/glsa-201409-02.xml
http://www.nntp.perl.org/group/perl.perl5.porters/2006/09/msg116250.html
http://bugzilla.redhat.com/show_bug.cgi?id=1072044
http://bugzilla.redhat.com/show_bug.cgi?id=1072778
http://rhn.redhat.com/errata/RHSA-2014-0322.html

Q & A

Can this vulnerability be exploited remotely?

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

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.