RHSA-2018:0998

Vulnerability from csaf_opensuse - Published: 2018-04-10 00:00 - Updated: 2026-09-20 11:00
Summary
security update for openssl
Severity
Moderate
Notes
Title of the patch: security update for openssl
Description of the patch: This security update provides a functional equivalent of RHSA-2018:0998. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2018:0998.
Patchnames: RHSA-2018:0998
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2017-3736
7.4 (High)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 7:openssl-1:1.0.2k-12.el7.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-perl-1:1.0.2k-12.el7.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.x86_64 —
Vendor Fix
Threats
Impact moderate
CVE-2017-3737
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Recommended 8 products, the same list as for CVE-2017-3736
Threats
Impact moderate
CVE-2017-3738
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Recommended 8 products, the same list as for CVE-2017-3736
Threats
Impact low
References
To clipboard 

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          "text": "There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.",
          "title": "CVE description"
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          "text": "https://www.suse.com/security/cve/CVE-2017-3737"
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          "text": "OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an \"error state\" mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected.",
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            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "SUSE Liberty Linux 7:openssl-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-perl-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-04-10T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2017-3737"
    },
    {
      "cve": "CVE-2017-3738",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-3738"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH1024 are considered just feasible, because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Liberty Linux 7:openssl-1:1.0.2k-12.el7.x86_64",
          "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.i686",
          "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.x86_64",
          "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.i686",
          "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.x86_64",
          "SUSE Liberty Linux 7:openssl-perl-1:1.0.2k-12.el7.x86_64",
          "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.i686",
          "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-3738",
          "url": "https://www.suse.com/security/cve/CVE-2017-3738"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1071906 for CVE-2017-3738",
          "url": "https://bugzilla.suse.com/1071906"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1097757 for CVE-2017-3738",
          "url": "https://bugzilla.suse.com/1097757"
        }
      ],
      "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 Liberty Linux 7:openssl-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-perl-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "SUSE Liberty Linux 7:openssl-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-devel-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-libs-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-perl-1:1.0.2k-12.el7.x86_64",
            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.i686",
            "SUSE Liberty Linux 7:openssl-static-1:1.0.2k-12.el7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-04-10T00:00:00Z",
          "details": "low"
        }
      ],
      "title": "CVE-2017-3738"
    }
  ]
}



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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.



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.