Vulnerability-Lookup

GHSA-5RCV-M4M3-HFH7

Vulnerability from github – Published: 2021-05-18 18:34 – Updated: 2024-05-20 19:24

Summary

golang.org/x/text Infinite loop

Details

Go version v0.3.3 of the x/text package fixes 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.

Specific Go Packages Affected

golang.org/x/text/encoding/unicode golang.org/x/text/transform

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "golang.org/x/text"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.3.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-14040"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-12T14:54:58Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Go version v0.3.3 of the x/text package fixes 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.\n\n### Specific Go Packages Affected\ngolang.org/x/text/encoding/unicode\ngolang.org/x/text/transform",
  "id": "GHSA-5rcv-m4m3-hfh7",
  "modified": "2024-05-20T19:24:15Z",
  "published": "2021-05-18T18:34:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14040"
    },
    {
      "type": "WEB",
      "url": "https://github.com/golang/go/issues/39491"
    },
    {
      "type": "WEB",
      "url": "https://github.com/golang/text/commit/23ae387dee1f90d29a23c0e87ee0b46038fbed0e"
    },
    {
      "type": "WEB",
      "url": "https://go-review.googlesource.com/c/text/+/238238"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/238238"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/39491"
    },
    {
      "type": "WEB",
      "url": "https://go.googlesource.com/text/+/23ae387dee1f90d29a23c0e87ee0b46038fbed0e"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#!topic/golang-announce/bXVeAmGOqz0"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/bXVeAmGOqz0"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TACQFZDPA7AUR6TRZBCX2RGRFSDYLI7O"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
      "type": "CVSS_V3"
    }
  ],
  "summary": "golang.org/x/text Infinite loop"
}

CVE-2020-14040 (GCVE-0-2020-14040)

Vulnerability from cvelistv5 – Published: 2020-06-17 19:22 – Updated: 2024-08-04 12:32

Summary

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

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://groups.google.com/forum/#%21topic/golang-…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

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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.

Detection rules are retrieved from Rulezet.

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.

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.