SUSE-SU-2026:2028-1

Vulnerability from csaf_suse - Published: 2026-05-20 09:08 - Updated: 2026-05-20 09:08
Summary
Security update for postgresql-jdbc
Severity
Important
Notes
Title of the patch: Security update for postgresql-jdbc
Description of the patch: This update for postgresql-jdbc fixes the following issue - CVE-2026-42198: client-side denial of service via malicious SCRAM-SHA-256 authentication (bsc#1264174).
Patchnames: SUSE-2026-2028,SUSE-SLE-Module-Server-Applications-15-SP7-2026-2028,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2028,SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2028,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2028,SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2028,SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2028,SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2028,SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2028,SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2028,SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2028,SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2028
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 High Performance Computing 15 SP4-ESPOS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Server Applications 15 SP7:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP5-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP6-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP5:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP6:postgresql-jdbc-42.2.25-150400.3.15.1.noarch
Vendor Fix
Threats
Impact important

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  "vulnerabilities": [
    {
      "cve": "CVE-2026-42198",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-42198"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time inside PBKDF2 before authentication can fail. A single attempt ties up a CPU core. Repeated or concurrent attempts exhaust client CPU and can wedge connection pools. In affected versions, loginTimeout did not fully mitigate this problem. When loginTimeout expired, the caller could stop waiting, but the worker thread performing the connection attempt could continue running and burning CPU inside the SCRAM PBKDF2 computation. This issue has been patched in version 42.7.11.",
          "title": "CVE description"
        }
      ],
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        },
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          "summary": "SUSE Bug 1264174 for CVE-2026-42198",
          "url": "https://bugzilla.suse.com/1264174"
        }
      ],
      "remediations": [
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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",
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      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Module for Server Applications 15 SP7:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Server 15 SP4-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Server 15 SP5-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Server 15 SP6-LTSS:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Server for SAP Applications 15 SP4:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Server for SAP Applications 15 SP5:postgresql-jdbc-42.2.25-150400.3.15.1.noarch",
            "SUSE Linux Enterprise Server for SAP Applications 15 SP6:postgresql-jdbc-42.2.25-150400.3.15.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-20T09:08:16Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-42198"
    }
  ]
}


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Tags
Taxonomy of the tags.


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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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