Vulnerability-Lookup

GHSA-GH7M-XPP3-W3VQ

Vulnerability from github – Published: 2026-11-02 15:31 – Updated: 2026-11-02 15:31

Details

inih before r63 contains a one-byte stack buffer under-read in ini_parse_stream() in ini.c that allows attackers to read abyss[-1] via an embedded NUL byte after an overlong line. Attackers can supply an INI file or string with a line of at least INI_MAX_LINE-1 bytes followed by a NUL byte, causing undefined behavior reported by memory sanitizers.

Severity

3.3 (Low)


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

4.8 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71450"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-127"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-02T15:17:12Z",
    "severity": "MODERATE"
  },
  "details": "inih before r63 contains a one-byte stack buffer under-read in ini_parse_stream() in ini.c that allows attackers to read abyss[-1] via an embedded NUL byte after an overlong line. Attackers can supply an INI file or string with a line of at least INI_MAX_LINE-1 bytes followed by a NUL byte, causing undefined behavior reported by memory sanitizers.",
  "id": "GHSA-gh7m-xpp3-w3vq",
  "modified": "2026-11-02T15:31:34Z",
  "published": "2026-11-02T15:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71450"
    },
    {
      "type": "WEB",
      "url": "https://github.com/benhoyt/inih/issues/223"
    },
    {
      "type": "WEB",
      "url": "https://github.com/benhoyt/inih/pull/206"
    },
    {
      "type": "WEB",
      "url": "https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169"
    },
    {
      "type": "WEB",
      "url": "https://github.com/benhoyt/inih/releases/tag/r63"
    },
    {
      "type": "WEB",
      "url": "https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-71450 (GCVE-0-2025-71450)

Vulnerability from cvelistv5 – Published: 2026-11-02 14:28 – Updated: 2026-11-02 14:28

Title

inih before r63 Stack Buffer Under-Read in ini_parse_stream Discard Loop

Summary

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

3.3 (Low)


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

CWE

CWE-127 - Buffer Under-read

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 7402 records in the last 180 days details

References

7 references

URL	Tags
https://github.com/benhoyt/inih/pull/206	issue-trackingpatch
https://github.com/benhoyt/inih/issues/223	issue-tracking
https://github.com/benhoyt/inih/commit/8e06f6b77b…	patch
https://github.com/benhoyt/inih/blob/r62/ini.c#L1…	technical-description
https://github.com/benhoyt/inih/releases/tag/r63	release-notes
https://hackmd.io/@haindpwn/inih-long-line-discar…	technical-description
https://www.vulncheck.com/advisories/inih-before-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
benhoyt	inih	Affected: 0 , < r63 (custom)

Date Public

2025-10-20 00:00

Credits

Fatih Çelik (fatihhcelik) HaiND from the Post and Telecommunication Institute of Technology

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "inih",
          "repo": "https://github.com/benhoyt/inih",
          "vendor": "benhoyt",
          "versions": [
            {
              "lessThan": "r63",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Fatih \u00c7elik (fatihhcelik)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "HaiND from the Post and Telecommunication Institute of Technology"
        }
      ],
      "datePublic": "2025-10-20T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "inih before r63 contains a one-byte stack buffer under-read in ini_parse_stream() in ini.c that allows attackers to read abyss[-1] via an embedded NUL byte after an overlong line. Attackers can supply an INI file or string with a line of at least INI_MAX_LINE-1 bytes followed by a NUL byte, causing undefined behavior reported by memory sanitizers."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-127",
              "description": "Buffer Under-read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-02T14:28:50.157Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/benhoyt/inih/pull/206"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/benhoyt/inih/issues/223"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169"
        },
        {
          "name": "inih r63 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/benhoyt/inih/releases/tag/r63"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read"
        },
        {
          "name": "VulnCheck Advisory: inih before r63 Stack Buffer Under-Read in ini_parse_stream Discard Loop",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop"
        }
      ],
      "title": "inih before r63 Stack Buffer Under-Read in ini_parse_stream Discard Loop",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2025-71450",
    "datePublished": "2026-11-02T14:28:50.157Z",
    "dateReserved": "2026-11-02T14:15:20.723Z",
    "dateUpdated": "2026-11-02T14:28:50.157Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
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