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SUSE-SU-2023:1764-1

Vulnerability from csaf_suse - Published: 2023-04-04 13:00 - Updated: 2023-04-04 13:00
Summary
Security update for openssl
Severity
Moderate
Notes
Title of the patch: Security update for openssl
Description of the patch: This update for openssl fixes the following issues: - CVE-2023-0464: Fixed excessive Resource Usage Verifying X.509 Policy Constraints (bsc#1209624).
Patchnames: SUSE-2023-1764,SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2023-1764
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-0.9.8j-0.106.63.1.x86_64
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-32bit-0.9.8j-0.106.63.1.x86_64
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-hmac-0.9.8j-0.106.63.1.x86_64
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-hmac-32bit-0.9.8j-0.106.63.1.x86_64
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:openssl-0.9.8j-0.106.63.1.x86_64
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:openssl-doc-0.9.8j-0.106.63.1.x86_64
Vendor Fix
Threats
Impact moderate

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        "category": "vendor",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-0464",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-0464"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A security vulnerability has been identified in all supported versions\n\nof OpenSSL related to the verification of X.509 certificate chains\nthat include policy constraints.  Attackers may be able to exploit this\nvulnerability by creating a malicious certificate chain that triggers\nexponential use of computational resources, leading to a denial-of-service\n(DoS) attack on affected systems.\n\nPolicy processing is disabled by default but can be enabled by passing\nthe `-policy\u0027 argument to the command line utilities or by calling the\n`X509_VERIFY_PARAM_set1_policies()\u0027 function.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-0464",
          "url": "https://www.suse.com/security/cve/CVE-2023-0464"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1209624 for CVE-2023-0464",
          "url": "https://bugzilla.suse.com/1209624"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1225628 for CVE-2023-0464",
          "url": "https://bugzilla.suse.com/1225628"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-32bit-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-hmac-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-hmac-32bit-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:openssl-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:openssl-doc-0.9.8j-0.106.63.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-32bit-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-hmac-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:libopenssl0_9_8-hmac-32bit-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:openssl-0.9.8j-0.106.63.1.x86_64",
            "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:openssl-doc-0.9.8j-0.106.63.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2023-04-04T13:00:59Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2023-0464"
    }
  ]
}



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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.

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Detection rules are retrieved from Rulezet.

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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.


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