Vulnerability-Lookup

OESA-2023-1935 (CVE-2023-39326)

Vulnerability from osv_openeuler – Published: 2023-12-22 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

golang security update

Details

Security Fix(es):

A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.(CVE-2023-39326)

Using go get to fetch a module with the ".git" suffix may unexpectedly fallback to the insecure "git://" protocol if the module is unavailable via the secure "https://" and "git+ssh://" protocols, even if GOINSECURE is not set for said module. This only affects users who are not using the module proxy and are fetching modules directly (i.e. GOPROXY=off).(CVE-2023-45285)

Severity

7.5 (High)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-39326	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-45285	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "golang-1.15.7-37.oe1.aarch64.rpm"
        ],
        "noarch": [
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        ],
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      },
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        "name": "golang",
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      },
      "ranges": [
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          "events": [
            {
              "introduced": "0"
            },
            {
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          "type": "ECOSYSTEM"
        }
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        ],
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      },
      "ranges": [
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              "introduced": "0"
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        ],
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  ],
  "database_specific": {
    "severity": "High"
  },
  "details": ".\r\n\r\nSecurity Fix(es):\r\n\r\nA malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small.(CVE-2023-39326)\r\n\r\nUsing go get to fetch a module with the \u0026quot;.git\u0026quot; suffix may unexpectedly fallback to the insecure \u0026quot;git://\u0026quot; protocol if the module is unavailable via the secure \u0026quot;https://\u0026quot; and \u0026quot;git+ssh://\u0026quot; protocols, even if GOINSECURE is not set for said module. This only affects users who are not using the module proxy and are fetching modules directly (i.e. GOPROXY=off).(CVE-2023-45285)",
  "id": "OESA-2023-1935",
  "modified": "2026-08-06T11:06:23Z",
  "published": "2023-12-22T11:06:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1935"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39326"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45285"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "golang security update",
  "upstream": [
    "CVE-2023-39326",
    "CVE-2023-45285"
  ]
}

CVE-2023-39326 (GCVE-0-2023-39326)

Vulnerability from cvelistv5 – Published: 2023-12-06 16:27 – Updated: 2025-02-13 17:02

Title

Denial of service via chunk extensions in net/http

Summary

Severity

No CVSS data available.

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Go Google root

References

5 references

URL	Tags
https://go.dev/issue/64433
https://go.dev/cl/547335
https://groups.google.com/g/golang-dev/c/6ypN5Eji…
https://pkg.go.dev/vuln/GO-2023-2382
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/http/internal	Affected: 0 , < 1.20.12 (semver) Affected: 1.21.0-0 , < 1.21.5 (semver)

Credits

Bartek Nowotarski

Show details on NVD website

JSON

To clipboard

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CVE-2023-45285 (GCVE-0-2023-45285)

Vulnerability from cvelistv5 – Published: 2023-12-06 16:27 – Updated: 2025-02-13 17:14

Title

Command 'go get' may unexpectedly fallback to insecure git in cmd/go

Summary

Severity

No CVSS data available.

CWE

CWE-636 - Not Failing Securely ('Failing Open')

Assigner

Go Google root

References

5 references

URL	Tags
https://groups.google.com/g/golang-dev/c/6ypN5Eji…
https://go.dev/issue/63845
https://go.dev/cl/540257
https://pkg.go.dev/vuln/GO-2023-2383
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

1 product

Vendor	Product	Version
Go toolchain	cmd/go	Affected: 0 , < 1.20.12 (semver) Affected: 1.21.0-0 , < 1.21.5 (semver)

Credits

David Leadbeater

Show details on NVD website

JSON

To clipboard

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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.

Action not permitted

OESA-2023-1935 (CVE-2023-39326)

CVE-2023-39326 (GCVE-0-2023-39326)

CVE-2023-45285 (GCVE-0-2023-45285)

Tags

Sightings

Nomenclature

Related by attack behaviour