CVE-2024-4603 (GCVE-0-2024-4603)

Vulnerability from cvelistv5 – Published: 2024-05-16 15:21 – Updated: 2024-10-14 14:56
VLAI
Title
Excessive time spent checking DSA keys and parameters
Summary
Issue summary: Checking excessively long DSA keys or parameters may be very slow. Impact summary: Applications that use the functions EVP_PKEY_param_check() or EVP_PKEY_public_check() to check a DSA public key or DSA parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. The functions EVP_PKEY_param_check() or EVP_PKEY_public_check() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (`p` parameter) is too large. Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks. An application that calls EVP_PKEY_param_check() or EVP_PKEY_public_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable. Also vulnerable are the OpenSSL pkey and pkeyparam command line applications when using the `-check` option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-16 18:27 UTC
CWE
  • CWE-606 - Unchecked Input for Loop Condition
  • CWE-834 - Excessive Iteration
Assigner
References
Impacted products
Vendor Product Version
OpenSSL OpenSSL Affected: 3.0.0 , < 3.0.14 (semver)
Affected: 3.1.0 , < 3.1.6 (semver)
Affected: 3.2.0 , < 3.2.2 (semver)
Affected: 3.3.0 , < 3.3.1 (semver)
Create a notification for this product.
openssl openssl Affected: 3.0.0 , < 3.0.14 (semver)
Affected: 3.1.0 , < 3.1.6 (semver)
Affected: 3.2.0 , < 3.2.2 (semver)
Affected: 3.3.0 , < 3.3.1 (semver)
    cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2024-05-16 00:00
Credits
OSS-Fuzz Tomas Mraz
Show details on NVD website
To clipboard 

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                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-10-14T14:56:01.784Z",
            "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
            "shortName": "openssl"
          },
          "references": [
            {
              "name": "OpenSSL Advisory",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://www.openssl.org/news/secadv/20240516.txt"
            },
            {
              "name": "3.0.14 git commit",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397"
            },
            {
              "name": "3.1.6 git commit",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/openssl/openssl/commit/9c39b3858091c152f52513c066ff2c5a47969f0d"
            },
            {
              "name": "3.2.2 git commit",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/openssl/openssl/commit/da343d0605c826ef197aceedc67e8e04f065f740"
            },
            {
              "name": "3.3.1 git commit",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/openssl/openssl/commit/53ea06486d296b890d565fb971b2764fcd826e7e"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Excessive time spent checking DSA keys and parameters",
          "x_generator": {
            "engine": "Vulnogram 0.1.0-dev"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "assignerShortName": "openssl",
        "cveId": "CVE-2024-4603",
        "datePublished": "2024-05-16T15:21:20.050Z",
        "dateReserved": "2024-05-07T11:44:02.196Z",
        "dateUpdated": "2024-10-14T14:56:01.784Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





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.