Summaryinfo

A vulnerability categorized as critical has been discovered in FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0. Affected by this vulnerability is the function cdxl_decode_frame of the file libavcodec/cdxl.c of the component CHUNKY Handler. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2017-9996. The attack must be initiated from a local position. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0 (Multimedia Processing Software). It has been classified as critical. Affected is the function cdxl_decode_frame of the file libavcodec/cdxl.c of the component CHUNKY Handler. The manipulation 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:

The cdxl_decode_frame function in libavcodec/cdxl.c in FFmpeg 2.8.x before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 does not exclude the CHUNKY format, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.

The bug was discovered 05/05/2017. The weakness was shared 06/28/2017 (Website). The advisory is available at securityfocus.com. This vulnerability is traded as CVE-2017-9996 since 06/28/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 54 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.8.12, 3.0.8, 3.1.8, 3.2.5 or 3.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 99323†). The entries VDB-102893, VDB-102892, VDB-102891 and VDB-102890 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7
• 2.8.8
• 2.8.9
• 2.8.10
• 2.8.11
• 3.0
• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.1
• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.2
• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.3.0

License

• open-source

Website

• Product: https://ffmpeg.org/

CPE 2.3info

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