github - ghsa-76r2-c3cg-f5r9

GHSA-76R2-C3CG-F5R9

Vulnerability from github – Published: 2025-09-30 15:30 – Updated: 2025-11-05 00:31

Details

Impact summary: An out-of-bounds read can trigger a crash which leads to Denial of Service for an application.

The OpenSSL HTTP client API functions can be used directly by applications but they are also used by the OCSP client functions and CMP (Certificate Management Protocol) client implementation in OpenSSL. However the URLs used by these implementations are unlikely to be controlled by an attacker.

In this vulnerable code the out of bounds read can only trigger a crash. Furthermore the vulnerability requires an attacker-controlled URL to be passed from an application to the OpenSSL function and the user has to have a 'no_proxy' environment variable set. For the aforementioned reasons the issue was assessed as Low severity.

The vulnerable code was introduced in the following patch releases: 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0.

The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the HTTP client implementation is outside the OpenSSL FIPS module boundary.

Severity ?

5.9 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-9232"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-30T14:15:41Z",
    "severity": "MODERATE"
  },
  "details": "Issue summary: An application using the OpenSSL HTTP client API functions may\ntrigger an out-of-bounds read if the \u0027no_proxy\u0027 environment variable is set and\nthe host portion of the authority component of the HTTP URL is an IPv6 address.\n\nImpact summary: An out-of-bounds read can trigger a crash which leads to\nDenial of Service for an application.\n\nThe OpenSSL HTTP client API functions can be used directly by applications\nbut they are also used by the OCSP client functions and CMP (Certificate\nManagement Protocol) client implementation in OpenSSL. However the URLs used\nby these implementations are unlikely to be controlled by an attacker.\n\nIn this vulnerable code the out of bounds read can only trigger a crash.\nFurthermore the vulnerability requires an attacker-controlled URL to be\npassed from an application to the OpenSSL function and the user has to have\na \u0027no_proxy\u0027 environment variable set. For the aforementioned reasons the\nissue was assessed as Low severity.\n\nThe vulnerable code was introduced in the following patch releases:\n3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0.\n\nThe FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this\nissue, as the HTTP client implementation is outside the OpenSSL FIPS module\nboundary.",
  "id": "GHSA-76r2-c3cg-f5r9",
  "modified": "2025-11-05T00:31:29Z",
  "published": "2025-09-30T15:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/2b4ec20e47959170422922eaff25346d362dcb35"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/654dc11d23468a74fc8ea4672b702dd3feb7be4b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/7cf21a30513c9e43c4bc3836c237cf086e194af3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/89e790ac431125a4849992858490bed6b225eadf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/bbf38c034cdabd0a13330abcc4855c866f53d2e0"
    },
    {
      "type": "WEB",
      "url": "https://openssl-library.org/news/secadv/20250930.txt"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/09/30/5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-9232 (GCVE-0-2025-9232)

Vulnerability from cvelistv5 – Published: 2025-09-30 13:17 – Updated: 2025-11-04 21:15

Summary

Issue summary: An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds read if the 'no_proxy' environment variable is set and the host portion of the authority component of the HTTP URL is an IPv6 address. Impact summary: An out-of-bounds read can trigger a crash which leads to Denial of Service for an application. The OpenSSL HTTP client API functions can be used directly by applications but they are also used by the OCSP client functions and CMP (Certificate Management Protocol) client implementation in OpenSSL. However the URLs used by these implementations are unlikely to be controlled by an attacker. In this vulnerable code the out of bounds read can only trigger a crash. Furthermore the vulnerability requires an attacker-controlled URL to be passed from an application to the OpenSSL function and the user has to have a 'no_proxy' environment variable set. For the aforementioned reasons the issue was assessed as Low severity. The vulnerable code was introduced in the following patch releases: 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the HTTP client implementation is outside the OpenSSL FIPS module boundary.

Severity ?

No CVSS data available.

CWE

CWE-125 - Out-of-bounds Read

Assigner

openssl

References

URL

Tags

	https://openssl-library.org/news/secadv/20250930.txt	vendor-advisory
	https://github.com/openssl/openssl/commit/2b4ec20…	patch
	https://github.com/openssl/openssl/commit/7cf21a3…	patch
	https://github.com/openssl/openssl/commit/bbf38c0…	patch
	https://github.com/openssl/openssl/commit/89e790a…	patch
	https://github.com/openssl/openssl/commit/654dc11…	patch

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Affected: 3.5.0 , < 3.5.4 (semver) Affected: 3.4.0 , < 3.4.3 (semver) Affected: 3.3.3 , < 3.3.5 (semver) Affected: 3.2.4 , < 3.2.6 (semver) Affected: 3.0.16 , < 3.0.18 (semver)

Credits

Stanislav Fort (Aisle Research) Stanislav Fort (Aisle Research)

Show details on NVD website

JSON

To clipboard

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              "attackVector": "NETWORK",
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              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-76R2-C3CG-F5R9

CVE-2025-9232 (GCVE-0-2025-9232)

Tags

Sightings

Nomenclature