libmp3splt 0.9.2 plugins/ogg.c vorbis_block_clear input validation

Summaryinfo

A vulnerability was found in libmp3splt 0.9.2. It has been declared as problematic. Impacted is the function vorbis_block_clear of the file plugins/ogg.c. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2017-15185. It is possible to launch the attack on the local host. Additionally, an exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in libmp3splt 0.9.2. This vulnerability affects the function vorbis_block_clear of the file plugins/ogg.c. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

plugins/ogg.c in Libmp3splt 0.9.2 calls the libvorbis vorbis_block_clear function with uninitialized data upon detection of invalid input, which allows remote attackers to cause a denial of service (application crash) via a crafted file.

The bug was discovered 07/30/2017. The weakness was released 10/09/2017 as EDB-ID 42399 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2017-15185 since 10/08/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 71 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 251135 (Linux Distros Unpatched Vulnerability : CVE-2017-15185), which helps to determine the existence of the flaw in a target environment.

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 databases at Exploit-DB (42399) and Tenable (251135). Entries connected to this vulnerability are available at VDB-104686 and VDB-104701. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• libmp3splt

Version

• 0.9.2

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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