github - ghsa-vrh7-x64v-7vxq

GHSA-VRH7-X64V-7VXQ

Vulnerability from github – Published: 2023-02-08 22:21 – Updated: 2025-11-04 22:08

Summary

openssl-src contains `NULL` dereference during PKCS7 data verification

Details

A NULL pointer can be dereferenced when signatures are being verified on PKCS7 signed or signedAndEnveloped data. In case the hash algorithm used for the signature is known to the OpenSSL library but the implementation of the hash algorithm is not available the digest initialization will fail. There is a missing check for the return value from the initialization function which later leads to invalid usage of the digest API most likely leading to a crash. The unavailability of an algorithm can be caused by using FIPS enabled configuration of providers or more commonly by not loading the legacy provider.

PKCS7 data is processed by the SMIME library calls and also by the time stamp (TS) library calls. The TLS implementation in OpenSSL does not call these functions however third party applications would be affected if they call these functions to verify signatures on untrusted data.

Severity ?

7.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "openssl-src"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "300.0.0"
            },
            {
              "fixed": "300.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-0401"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-08T22:21:22Z",
    "nvd_published_at": "2023-02-08T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "A `NULL` pointer can be dereferenced when signatures are being verified on PKCS7 `signed` or `signedAndEnveloped` data. In case the hash algorithm used for the signature is known to the OpenSSL library but the implementation of the hash algorithm is not available the digest initialization will fail. There is a missing check for the return value from the initialization function which later leads to invalid usage of the digest API most likely leading to a crash. The unavailability of an algorithm can be caused by using FIPS enabled configuration of providers or more commonly by not loading the legacy provider.\n\nPKCS7 data is processed by the SMIME library calls and also by the time stamp (TS) library calls. The TLS implementation in OpenSSL does not call these functions however third party applications would be affected if they call these functions to verify signatures on untrusted data.",
  "id": "GHSA-vrh7-x64v-7vxq",
  "modified": "2025-11-04T22:08:55Z",
  "published": "2023-02-08T22:21:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0401"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=d3b6dfd70db844c4499bec6ad6601623a565e674"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/alexcrichton/openssl-src-rs"
    },
    {
      "type": "WEB",
      "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0013.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202402-08"
    },
    {
      "type": "WEB",
      "url": "https://www.openssl.org/news/secadv/20230207.txt"
    }
  ],
  "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",
      "type": "CVSS_V3"
    }
  ],
  "summary": "openssl-src contains `NULL` dereference during PKCS7 data verification"
}

CVE-2023-0401 (GCVE-0-2023-0401)

Vulnerability from cvelistv5 – Published: 2023-02-08 19:00 – Updated: 2025-11-04 19:14

Summary

A NULL pointer can be dereferenced when signatures are being verified on PKCS7 signed or signedAndEnveloped data. In case the hash algorithm used for the signature is known to the OpenSSL library but the implementation of the hash algorithm is not available the digest initialization will fail. There is a missing check for the return value from the initialization function which later leads to invalid usage of the digest API most likely leading to a crash. The unavailability of an algorithm can be caused by using FIPS enabled configuration of providers or more commonly by not loading the legacy provider. PKCS7 data is processed by the SMIME library calls and also by the time stamp (TS) library calls. The TLS implementation in OpenSSL does not call these functions however third party applications would be affected if they call these functions to verify signatures on untrusted data.

Severity ?

No CVSS data available.

CWE

NULL pointer deference

Assigner

openssl

References

URL

Tags

	https://www.openssl.org/news/secadv/20230207.txt	vendor-advisory
	https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
	https://security.gentoo.org/glsa/202402-08

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Affected: 3.0.0 , < 3.0.8 (semver)

Credits

Hubert Kario (Red Hat) Dmitry Belyavsky (Red Hat) Tomáš Mráz

Show details on NVD website

JSON

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          },
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            ],
            "url": "https://security.gentoo.org/glsa/202402-08"
          },
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            "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003"
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              "userInteraction": "NONE",
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                "options": [
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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-VRH7-X64V-7VXQ

CVE-2023-0401 (GCVE-0-2023-0401)

Tags

Sightings

Nomenclature