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CVE-2020-14040

HIGHCVSS 7.5/10EPSS 1.85%

Last modified

CVE-2020-14040 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an infinite loop if the String function on the Decoder is called, or the Decoder is passed to golang.org/x/text/transform.String.. EPSS estimates a 1.85% chance of exploitation in the next 30 days.

Description

The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an infinite loop if the String function on the Decoder is called, or the Decoder is passed to golang.org/x/text/transform.String.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.85%

76.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GolangText< 0.3.3
FedoraprojectFedora32

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-14040?
The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an infinite loop if the String function on the Decoder is called, or the Decoder is passed to golang.org/x/text/transform.String.
How severe is CVE-2020-14040?
CVE-2020-14040 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.85% probability of exploitation in the next 30 days.
How do I fix CVE-2020-14040?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14040?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST