certfr_avis - certfr-2023-avi-0550

CERTFR-2023-AVI-0550

Vulnerability from certfr_avis

Une vulnérabilité a été découverte dans OpenSSL. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

OpenSSL versions 3.0.0 à 3.0.9
OpenSSL versions 3.1.0 à 3.1.1

L'éditeur estime que cette vulnérabilité est de faible criticité et proposera un correctif lors de la prochaine mise à jour.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2023-2975 (GCVE-0-2023-2975)

Vulnerability from cvelistv5

Published

2023-07-14 11:16

Modified

2025-04-23 16:20

Severity ?

CWE

CWE-354 - Improper Validation of Integrity Check Value

Summary

Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries which are unauthenticated as a consequence. Impact summary: Applications that use the AES-SIV algorithm and want to authenticate empty data entries as associated data can be misled by removing, adding or reordering such empty entries as these are ignored by the OpenSSL implementation. We are currently unaware of any such applications. The AES-SIV algorithm allows for authentication of multiple associated data entries along with the encryption. To authenticate empty data the application has to call EVP_EncryptUpdate() (or EVP_CipherUpdate()) with NULL pointer as the output buffer and 0 as the input buffer length. The AES-SIV implementation in OpenSSL just returns success for such a call instead of performing the associated data authentication operation. The empty data thus will not be authenticated. As this issue does not affect non-empty associated data authentication and we expect it to be rare for an application to use empty associated data entries this is qualified as Low severity issue.

References

URL

Tags

	https://www.openssl.org/news/secadv/20230714.txt	vendor-advisory
	https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a83f0c958811f07e0d11dfc6b5a6a98edfd5bdc	patch
	https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=00e2f5eea29994d19293ec4e8c8775ba73678598	patch

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Version: 3.1.0 ≤ Version: 3.0.0 ≤

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:41:04.070Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "OpenSSL Advisory",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.openssl.org/news/secadv/20230714.txt"
          },
          {
            "name": "3.1.2 git commit",
            "tags": [
              "patch",
              "x_transferred"
            ],
            "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a83f0c958811f07e0d11dfc6b5a6a98edfd5bdc"
          },
          {
            "name": "3.0.10 git commit",
            "tags": [
              "patch",
              "x_transferred"
            ],
            "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=00e2f5eea29994d19293ec4e8c8775ba73678598"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/07/15/1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/07/19/5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230725-0004/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202402-08"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-2975",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:26:23.638671Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T16:20:14.504Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
            {
              "lessThan": "3.1.2",
              "status": "affected",
              "version": "3.1.0",
              "versionType": "semver"
            },
            {
              "lessThan": "3.0.10",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Juerg Wullschleger (Google)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Tomas Mraz"
        }
      ],
      "datePublic": "2023-07-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Issue summary: The AES-SIV cipher implementation contains a bug that causes\u003cbr\u003eit to ignore empty associated data entries which are unauthenticated as\u003cbr\u003ea consequence.\u003cbr\u003e\u003cbr\u003eImpact summary: Applications that use the AES-SIV algorithm and want to\u003cbr\u003eauthenticate empty data entries as associated data can be misled by removing,\u003cbr\u003eadding or reordering such empty entries as these are ignored by the OpenSSL\u003cbr\u003eimplementation. We are currently unaware of any such applications.\u003cbr\u003e\u003cbr\u003eThe AES-SIV algorithm allows for authentication of multiple associated\u003cbr\u003edata entries along with the encryption. To authenticate empty data the\u003cbr\u003eapplication has to call EVP_EncryptUpdate() (or EVP_CipherUpdate()) with\u003cbr\u003eNULL pointer as the output buffer and 0 as the input buffer length.\u003cbr\u003eThe AES-SIV implementation in OpenSSL just returns success for such a call\u003cbr\u003einstead of performing the associated data authentication operation.\u003cbr\u003eThe empty data thus will not be authenticated.\u003cbr\u003e\u003cbr\u003eAs this issue does not affect non-empty associated data authentication and\u003cbr\u003ewe expect it to be rare for an application to use empty associated data\u003cbr\u003eentries this is qualified as Low severity issue."
            }
          ],
          "value": "Issue summary: The AES-SIV cipher implementation contains a bug that causes\nit to ignore empty associated data entries which are unauthenticated as\na consequence.\n\nImpact summary: Applications that use the AES-SIV algorithm and want to\nauthenticate empty data entries as associated data can be misled by removing,\nadding or reordering such empty entries as these are ignored by the OpenSSL\nimplementation. We are currently unaware of any such applications.\n\nThe AES-SIV algorithm allows for authentication of multiple associated\ndata entries along with the encryption. To authenticate empty data the\napplication has to call EVP_EncryptUpdate() (or EVP_CipherUpdate()) with\nNULL pointer as the output buffer and 0 as the input buffer length.\nThe AES-SIV implementation in OpenSSL just returns success for such a call\ninstead of performing the associated data authentication operation.\nThe empty data thus will not be authenticated.\n\nAs this issue does not affect non-empty associated data authentication and\nwe expect it to be rare for an application to use empty associated data\nentries this is qualified as Low severity issue."
        }
      ],
      "metrics": [
        {
          "format": "other",
          "other": {
            "content": {
              "text": "Low"
            },
            "type": "https://www.openssl.org/policies/secpolicy.html"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-354",
              "description": "CWE-354 Improper Validation of Integrity Check Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-10-14T14:55:45.748Z",
        "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "shortName": "openssl"
      },
      "references": [
        {
          "name": "OpenSSL Advisory",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.openssl.org/news/secadv/20230714.txt"
        },
        {
          "name": "3.1.2 git commit",
          "tags": [
            "patch"
          ],
          "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a83f0c958811f07e0d11dfc6b5a6a98edfd5bdc"
        },
        {
          "name": "3.0.10 git commit",
          "tags": [
            "patch"
          ],
          "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=00e2f5eea29994d19293ec4e8c8775ba73678598"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "AES-SIV implementation ignores empty associated data entries",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2023-2975",
    "datePublished": "2023-07-14T11:16:25.151Z",
    "dateReserved": "2023-05-30T10:29:34.539Z",
    "dateUpdated": "2025-04-23T16:20:14.504Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted