SUSE-SU-2020:0390-1

Vulnerability from csaf_suse - Published: 2020-02-18 08:23 - Updated: 2026-09-20 13:25
Summary
Security update for sudo
Severity
Important
Notes
Title of the patch: Security update for sudo
Description of the patch: This update for sudo fixes the following issue: Security issue fixed: - CVE-2019-18634: Fixed a buffer overflow in the passphrase prompt that could occur when pwfeedback was enabled in /etc/sudoers (bsc#1162202).
Patchnames: SUSE-2020-390,SUSE-SLE-SAP-12-SP1-2020-390,SUSE-SLE-SERVER-12-SP1-2020-390
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 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64 —
Vendor Fix
Threats
Impact important

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          "name": "sudo-0:1.8.10p3-2.32.1.s390x as component of SUSE Linux Enterprise Server 12 SP1-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x"
        },
        "product_reference": "sudo-0:1.8.10p3-2.32.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.8.10p3-2.32.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP1-LTSS",
          "product_id": "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64"
        },
        "product_reference": "sudo-0:1.8.10p3-2.32.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server 12 SP1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.8.10p3-2.32.1.ppc64le as component of SUSE Linux Enterprise Server 12 SP1-LTSS",
          "product_id": "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le"
        },
        "product_reference": "sudo-0:1.8.10p3-2.32.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise High Performance Computing 12 SP1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.8.10p3-2.32.1.s390x as component of SUSE Linux Enterprise Server 12 SP1-LTSS",
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        },
        "product_reference": "sudo-0:1.8.10p3-2.32.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise High Performance Computing 12 SP1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "sudo-0:1.8.10p3-2.32.1.x86_64 as component of SUSE Linux Enterprise Server 12 SP1-LTSS",
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        },
        "product_reference": "sudo-0:1.8.10p3-2.32.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise High Performance Computing 12 SP1"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-18634",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2019-18634"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le",
          "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x",
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          "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.ppc64le",
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          "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x",
          "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2019-18634",
          "url": "https://www.suse.com/security/cve/CVE-2019-18634"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1162202 for CVE-2019-18634",
          "url": "https://bugzilla.suse.com/1162202"
        }
      ],
      "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 High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le",
            "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x",
            "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.ppc64le",
            "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.s390x",
            "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le",
            "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x",
            "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le",
            "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x",
            "SUSE Linux Enterprise High Performance Computing 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.ppc64le",
            "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.s390x",
            "SUSE Linux Enterprise Server 12 SP1-LTSS:sudo-0:1.8.10p3-2.32.1.x86_64",
            "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.ppc64le",
            "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.s390x",
            "SUSE Linux Enterprise Server 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:sudo-0:1.8.10p3-2.32.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2020-02-18T08:23:10Z",
          "details": "important"
        }
      ],
      "title": "CVE-2019-18634"
    }
  ]
}



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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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