Google Go up to 1.13.14/1.14.6 ReadUvarint/ReadVarint infinite loop

Summaryinfo

A vulnerability classified as problematic has been found in Google Go up to 1.13.14/1.14.6. This issue affects the function ReadUvarint/ReadVarint. This manipulation causes infinite loop. This vulnerability is handled as CVE-2020-16845. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Go up to 1.13.14/1.14.6 (Programming Language Software). It has been declared as problematic. Affected by this vulnerability is the function ReadUvarint/ReadVarint. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. The summary by CVE is:

Go before 1.13.15 and 14.x before 1.14.7 can have an infinite read loop in ReadUvarint and ReadVarint in encoding/binary via invalid inputs.

The weakness was released 08/06/2020 (Website). The advisory is shared at groups.google.com. This vulnerability is known as CVE-2020-16845 since 08/04/2020. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 215875 (Azure Linux 3.0 Security Update: golang / python-tensorboard (CVE-2020-16845)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.13.15 or 1.14.7 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215875). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Programming Language Software

Vendor

• Google

Name

• Go

Version

• 1.13.0
• 1.13.1
• 1.13.2
• 1.13.3
• 1.13.4
• 1.13.5
• 1.13.6
• 1.13.7
• 1.13.8
• 1.13.9
• 1.13.10
• 1.13.11
• 1.13.12
• 1.13.13
• 1.13.14
• 1.14.0
• 1.14.1
• 1.14.2
• 1.14.3
• 1.14.4
• 1.14.5
• 1.14.6

License

• open-source

Website

• Vendor: https://www.google.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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