dnstracer up to 1.9 Name memory corruption

Summaryinfo

A vulnerability, which was classified as critical, was found in dnstracer up to 1.9. Impacted is an unknown function. The manipulation of the argument Name results in memory corruption. This vulnerability is cataloged as CVE-2017-9430. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in dnstracer up to 1.9. Affected is some unknown functionality. The manipulation of the argument name with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.

The bug was discovered 06/06/2017. The weakness was shared 06/05/2017 (Website). The advisory is shared for download at cxsecurity.com. This vulnerability is traded as CVE-2017-9430. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (42115). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• dnstracer

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9

CPE 2.3info

• 🔍
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CPE 2.2info

• 🔍
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Once again VulDB remains the best source for vulnerability data.

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