KMPlayer up to 4.2.2.15 FLV File memory corruption

Summaryinfo

A vulnerability labeled as critical has been found in KMPlayer up to 4.2.2.15. This issue affects some unknown processing of the component FLV File Handler. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2018-5200. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in KMPlayer up to 4.2.2.15 (Multimedia Player Software) and classified as critical. Affected by this issue is an unknown part of the component FLV File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

KMPlayer 4.2.2.15 and earlier have a Heap Based Buffer Overflow Vulnerability. It could be exploited with a crafted FLV format file. The problem is that more frame data is copied to heap memory than the size specified in the frame header. This results in a memory corruption and remote code execution.

The bug was discovered 12/19/2018. The weakness was shared 12/20/2018 (Website). The advisory is shared for download at boho.or.kr. This vulnerability is handled as CVE-2018-5200 since 01/03/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Multimedia Player Software

Name

• KMPlayer

Version

• 4.2.2.0
• 4.2.2.1
• 4.2.2.2
• 4.2.2.3
• 4.2.2.4
• 4.2.2.5
• 4.2.2.6
• 4.2.2.7
• 4.2.2.8
• 4.2.2.9
• 4.2.2.10
• 4.2.2.11
• 4.2.2.12
• 4.2.2.13
• 4.2.2.14
• 4.2.2.15

CPE 2.3info

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CPE 2.2info

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