ubuntu-cve-2020-14040
Vulnerability from osv_ubuntu
Published
2020-06-17 20:15
Modified
2025-10-24 04:48
Summary
Details
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.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-x-text-dev",
"binary_version": "0+git20151217.cf49866-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "golang-x-text",
"purl": "pkg:deb/ubuntu/golang-x-text@0+git20151217.cf49866-0ubuntu1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0+git20151019.0fe7e68-0ubuntu1",
"0+git20151217.cf49866-0ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-golang-x-text-dev",
"binary_version": "0.0~git20170627.0.6353ef0-1ubuntu2.1"
},
{
"binary_name": "golang-x-text-dev",
"binary_version": "0.0~git20170627.0.6353ef0-1ubuntu2.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "golang-x-text",
"purl": "pkg:deb/ubuntu/golang-x-text@0.0~git20170627.0.6353ef0-1ubuntu2.1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0~git20170627.0.6353ef0-1ubuntu2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.0~git20170627.0.6353ef0-1ubuntu1",
"0.0~git20170627.0.6353ef0-1ubuntu2"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-golang-x-text-dev",
"binary_version": "0.3.2-4ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "golang-golang-x-text",
"purl": "pkg:deb/ubuntu/golang-golang-x-text@0.3.2-4ubuntu0.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.2-4ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.3.2-3",
"0.3.2-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-golang-x-text-dev",
"binary_version": "0.3.2-1"
},
{
"binary_name": "golang-x-text-dev",
"binary_version": "0.3.2-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "golang-x-text",
"purl": "pkg:deb/ubuntu/golang-x-text@0.3.2-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.3.2-1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2020-14040",
"modified": "2025-10-24T04:48:32Z",
"published": "2020-06-17T20:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-14040"
},
{
"type": "REPORT",
"url": "https://groups.google.com/forum/#!topic/golang-announce/bXVeAmGOqz0"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5873-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-14040"
}
],
"related": [
"USN-5873-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2020-14040"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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