#VU33173 Double Free in ldns - CVE-2017-1000232

Vulnerability identifier: #VU33173

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-1000232

CWE-ID: CWE-415

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ldns
Other software / Other software solutions

Vendor: NLnet Labs

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ldns: 1.7.0

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External links
https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00000.html
https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=1257

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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.