CVE-2023-0215 (GCVE-0-2023-0215)

Vulnerability from cvelistv5 – Published: 2023-02-08 19:03 – Updated: 2025-11-04 19:14
VLAI
Title
Use-after-free following BIO_new_NDEF
Summary
The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the SMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by end user applications. The function receives a BIO from the caller, prepends a new BIO_f_asn1 filter BIO onto the front of it to form a BIO chain, and then returns the new head of the BIO chain to the caller. Under certain conditions, for example if a CMS recipient public key is invalid, the new filter BIO is freed and the function returns a NULL result indicating a failure. However, in this case, the BIO chain is not properly cleaned up and the BIO passed by the caller still retains internal pointers to the previously freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO then a use-after-free will occur. This will most likely result in a crash. This scenario occurs directly in the internal function B64_write_ASN1() which may cause BIO_new_NDEF() to be called and will subsequently call BIO_pop() on the BIO. This internal function is in turn called by the public API functions PEM_write_bio_ASN1_stream, PEM_write_bio_CMS_stream, PEM_write_bio_PKCS7_stream, SMIME_write_ASN1, SMIME_write_CMS and SMIME_write_PKCS7. Other public API functions that may be impacted by this include i2d_ASN1_bio_stream, BIO_new_CMS, BIO_new_PKCS7, i2d_CMS_bio_stream and i2d_PKCS7_bio_stream. The OpenSSL cms and smime command line applications are similarly affected.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:26 UTC
CWE
  • use-after-free
  • CWE-416 - Use After Free
Assigner
References
Impacted products
Vendor Product Version CPE status
OpenSSL OpenSSL Affected: 3.0.0 , < 3.0.8 (semver)
Affected: 1.1.1 , < 1.1.1t (custom)
Affected: 1.0.2 , < 1.0.2zg (custom)
guessed Create a notification for this product.
Date Public
2023-02-07 00:00
Credits
Octavio Galland (Max Planck Institute for Security and Privacy) Marcel Böhme (Max Planck Institute for Security and Privacy) Viktor Dukhovni Matt Caswell
Show details on NVD website
To clipboard 

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            "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003"
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          {
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        ],
        "sourceIdentifier": "openssl-security@openssl.org",
        "vulnStatus": "Modified",
        "weaknesses": [
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            "description": [
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                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
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                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-21T05:43:55+00:00",
      "cve": "CVE-2023-0215",
      "id": "CVE-2023-0215",
      "initial_release_date": "2023-02-07T00:00:00+00:00",
      "product_status:fixed": "209",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "113",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openssl: use-after-free following BIO_new_NDEF",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-0215.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
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              "dateUpdated": "2025-11-04T19:14:32.988Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "references": [
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              },
              {
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                "url": "https://security.netapp.com/advisory/ntap-20230427-0009/"
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              },
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                "url": "https://security.netapp.com/advisory/ntap-20240621-0006/"
              },
              {
                "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.5,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
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                    "options": [
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              "dateUpdated": "2025-05-05T13:07:13.819Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
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            "title": "CISA ADP Vulnrichment"
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              "vendor": "OpenSSL",
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              "type": "reporter",
              "user": "00000000-0000-4000-9000-000000000000",
              "value": "Octavio Galland (Max Planck Institute for Security and Privacy)"
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              "type": "reporter",
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              "value": "Marcel B\u00f6hme (Max Planck Institute for Security and Privacy)"
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              "type": "remediation developer",
              "user": "00000000-0000-4000-9000-000000000000",
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          "datePublic": "2023-02-07T00:00:00.000Z",
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                  "value": "The public API function BIO_new_NDEF is a helper function used for streaming\u003cbr\u003eASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the\u003cbr\u003eSMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by\u003cbr\u003eend user applications.\u003cbr\u003e\u003cbr\u003eThe function receives a BIO from the caller, prepends a new BIO_f_asn1 filter\u003cbr\u003eBIO onto the front of it to form a BIO chain, and then returns the new head of\u003cbr\u003ethe BIO chain to the caller. Under certain conditions, for example if a CMS\u003cbr\u003erecipient public key is invalid, the new filter BIO is freed and the function\u003cbr\u003ereturns a NULL result indicating a failure. However, in this case, the BIO chain\u003cbr\u003eis not properly cleaned up and the BIO passed by the caller still retains\u003cbr\u003einternal pointers to the previously freed filter BIO. If the caller then goes on\u003cbr\u003eto call BIO_pop() on the BIO then a use-after-free will occur. This will most\u003cbr\u003elikely result in a crash.\u003cbr\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThis scenario occurs directly in the internal function B64_write_ASN1() which\u003cbr\u003emay cause BIO_new_NDEF() to be called and will subsequently call BIO_pop() on\u003cbr\u003ethe BIO. This internal function is in turn called by the public API functions\u003cbr\u003ePEM_write_bio_ASN1_stream, PEM_write_bio_CMS_stream, PEM_write_bio_PKCS7_stream,\u003cbr\u003eSMIME_write_ASN1, SMIME_write_CMS and SMIME_write_PKCS7.\u003cbr\u003e\u003cbr\u003eOther public API functions that may be impacted by this include\u003cbr\u003ei2d_ASN1_bio_stream, BIO_new_CMS, BIO_new_PKCS7, i2d_CMS_bio_stream and\u003cbr\u003ei2d_PKCS7_bio_stream.\u003cbr\u003e\u003cbr\u003eThe OpenSSL cms and smime command line applications are similarly affected.\u003cbr\u003e\u003cbr\u003e\u003c/div\u003e"
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              "url": "https://security.netapp.com/advisory/ntap-20240621-0006/"
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          ],
          "source": {
            "discovery": "UNKNOWN"
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          "title": "Use-after-free following BIO_new_NDEF",
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        "assignerShortName": "openssl",
        "cveId": "CVE-2023-0215",
        "datePublished": "2023-02-08T19:03:28.691Z",
        "dateReserved": "2023-01-11T11:59:16.647Z",
        "dateUpdated": "2025-11-04T19:14:32.988Z",
        "state": "PUBLISHED"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.