#VU33692 NULL pointer dereference in NSD - CVE-2012-2978

Vulnerability identifier: #VU33692

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-2012-2978

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NSD
Server applications / DNS servers

Vendor: NLnet Labs

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 a crafted DNS packet.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

NSD: 3.0.0 - 3.2.10

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External links
https://osvdb.org/84097
https://secunia.com/advisories/49795
https://secunia.com/advisories/49997
https://www.debian.org/security/2012/dsa-2515
https://www.kb.cert.org/vuls/id/624931
https://www.nlnetlabs.nl/downloads/CVE-2012-2978.txt
https://www.securityfocus.com/bid/54606

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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.