Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 10:58

Modified

2026-09-08 08:34

Summary

Memory exhaustion when compiling regular expressions in regexp/syntax

Details

Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "golang",
        "purl": "pkg:bitnami/golang"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.18.7"
            },
            {
              "introduced": "1.19.0"
            },
            {
              "fixed": "1.19.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-41715"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.",
  "id": "BIT-golang-2022-41715",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T10:58:39.087Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://go.dev/cl/439356"
    },
    {
      "type": "ADVISORY",
      "url": "https://go.dev/issue/55949"
    },
    {
      "type": "DISCUSSION",
      "url": "https://groups.google.com/g/golang-announce/c/xtuG5faxtaU"
    },
    {
      "type": "ADVISORY",
      "url": "https://pkg.go.dev/vuln/GO-2022-1039"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202311-09"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41715"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Memory exhaustion when compiling regular expressions in regexp/syntax"
}

CVE-2022-41715 (GCVE-0-2022-41715)

Vulnerability from cvelistv5 – Published: 2022-10-14 00:00 – Updated: 2025-02-13 16:33

Title

Memory exhaustion when compiling regular expressions in regexp/syntax

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/55949
https://go.dev/cl/439356
https://groups.google.com/g/golang-announce/c/xtu…
https://pkg.go.dev/vuln/GO-2022-1039
https://security.gentoo.org/glsa/202311-09

Impacted products

1 product

Vendor	Product	Version
Go standard library	regexp/syntax	Affected: 0 , < 1.18.7 (semver) Affected: 1.19.0-0 , < 1.19.2 (semver)

Credits

Adam Korczynski (ADA Logics) OSS-Fuzz

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:49:43.550Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/55949"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/439356"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/golang-announce/c/xtuG5faxtaU"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2022-1039"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-09"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "regexp/syntax",
          "product": "regexp/syntax",
          "programRoutines": [
            {
              "name": "parser.push"
            },
            {
              "name": "parser.repeat"
            },
            {
              "name": "parser.factor"
            },
            {
              "name": "parse"
            },
            {
              "name": "Parse"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.18.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.19.2",
              "status": "affected",
              "version": "1.19.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Adam Korczynski (ADA Logics)"
        },
        {
          "lang": "en",
          "value": "OSS-Fuzz"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE 400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-11-25T11:09:55.534Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/55949"
        },
        {
          "url": "https://go.dev/cl/439356"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/xtuG5faxtaU"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2022-1039"
        },
        {
          "url": "https://security.gentoo.org/glsa/202311-09"
        }
      ],
      "title": "Memory exhaustion when compiling regular expressions in regexp/syntax"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2022-41715",
    "datePublished": "2022-10-14T00:00:00.000Z",
    "dateReserved": "2022-09-28T00:00:00.000Z",
    "dateUpdated": "2025-02-13T16:33:07.652Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.