RHSA-2020:1840

Vulnerability from csaf_opensuse - Published: 2020-04-28 00:00 - Updated: 2026-09-20 11:08
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-2020:1840. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2020:1840.
Patchnames: RHSA-2020:1840
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 Liberty Linux 8:openssl-1:1.1.1c-15.el8.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:openssl-perl-1:1.1.1c-15.el8.x86_64 —
Vendor Fix
Threats
Impact moderate
Affected products
Recommended 6 products, the same list as for CVE-2019-1547
Threats
Impact moderate
Affected products
Recommended 6 products, the same list as for CVE-2019-1547
Threats
Impact low

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          "text": "https://www.suse.com/security/cve/CVE-2019-1547"
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        {
          "category": "general",
          "text": "Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters (instead of using a named curve). In those cases it is possible that such a group does not have the cofactor present. This can occur even where all the parameters match a known named curve. If such a curve is used then OpenSSL falls back to non-side channel resistant code paths which may result in full key recovery during an ECDSA signature operation. In order to be vulnerable an attacker would have to have the ability to time the creation of a large number of signatures where explicit parameters with no co-factor present are in use by an application using libcrypto. For the avoidance of doubt libssl is not vulnerable because explicit parameters are never used. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).",
          "title": "CVE description"
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        {
          "category": "external",
          "summary": "SUSE Bug 1150003 for CVE-2019-1547",
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        {
          "category": "external",
          "summary": "SUSE Bug 1154162 for CVE-2019-1547",
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          "summary": "SUSE Bug 1154166 for CVE-2019-1547",
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        {
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          "summary": "SUSE Bug 1156430 for CVE-2019-1547",
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        {
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          "summary": "SUSE Bug 1161085 for CVE-2019-1547",
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        {
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          "summary": "SUSE Bug 1205621 for CVE-2019-1547",
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        {
          "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": [
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            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.x86_64",
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          "text": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).",
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
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            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.i686",
            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.x86_64",
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            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.x86_64",
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            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.x86_64",
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          "date": "2020-04-28T00:00:00Z",
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2019-1563"
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        {
          "category": "general",
          "text": "In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).",
          "title": "CVE description"
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          "summary": "SUSE Bug 1156430 for CVE-2019-1563",
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        {
          "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 8:openssl-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.i686",
            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.i686",
            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-perl-1:1.1.1c-15.el8.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "SUSE Liberty Linux 8:openssl-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.i686",
            "SUSE Liberty Linux 8:openssl-devel-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.i686",
            "SUSE Liberty Linux 8:openssl-libs-1:1.1.1c-15.el8.x86_64",
            "SUSE Liberty Linux 8:openssl-perl-1:1.1.1c-15.el8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2020-04-28T00:00:00Z",
          "details": "low"
        }
      ],
      "title": "CVE-2019-1563"
    }
  ]
}



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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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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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