MessagePack for C#/Unity up to 1.9.2/2.1.79 stack-based overflow

Summaryinfo

A vulnerability identified as problematic has been detected in MessagePack for C# and Unity up to 1.9.2/2.1.79. Affected is an unknown function. This manipulation causes stack-based overflow. The identification of this vulnerability is CVE-2020-5234. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in MessagePack for C# and Unity up to 1.9.2/2.1.79. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. The summary by CVE is:

MessagePack for C# and Unity before version 1.9.3 and 2.1.80 has a vulnerability where untrusted data can lead to DoS attack due to hash collisions and stack overflow. Review the linked GitHub Security Advisory for more information and remediation steps.

The weakness was shared 01/31/2020 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-5234 since 01/02/2020. The exploitation appears to be difficult. The attack can be launched remotely. A single authentication is required for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.9.3 or 2.1.80 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• MessagePack for C#
• Unity

Version

• 1.9.0
• 1.9.1
• 1.9.2
• 2.1.0
• 2.1.1
• 2.1.2
• 2.1.3
• 2.1.4
• 2.1.5
• 2.1.6
• 2.1.7
• 2.1.8
• 2.1.9
• 2.1.10
• 2.1.11
• 2.1.12
• 2.1.13
• 2.1.14
• 2.1.15
• 2.1.16
• 2.1.17
• 2.1.18
• 2.1.19
• 2.1.20
• 2.1.21
• 2.1.22
• 2.1.23
• 2.1.24
• 2.1.25
• 2.1.26
• 2.1.27
• 2.1.28
• 2.1.29
• 2.1.30
• 2.1.31
• 2.1.32
• 2.1.33
• 2.1.34
• 2.1.35
• 2.1.36
• 2.1.37
• 2.1.38
• 2.1.39
• 2.1.40
• 2.1.41
• 2.1.42
• 2.1.43
• 2.1.44
• 2.1.45
• 2.1.46
• 2.1.47
• 2.1.48
• 2.1.49
• 2.1.50
• 2.1.51
• 2.1.52
• 2.1.53
• 2.1.54
• 2.1.55
• 2.1.56
• 2.1.57
• 2.1.58
• 2.1.59
• 2.1.60
• 2.1.61
• 2.1.62
• 2.1.63
• 2.1.64
• 2.1.65
• 2.1.66
• 2.1.67
• 2.1.68
• 2.1.69
• 2.1.70
• 2.1.71
• 2.1.72
• 2.1.73
• 2.1.74
• 2.1.75
• 2.1.76
• 2.1.77
• 2.1.78
• 2.1.79

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

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