suse-su-2019:3086-1
Vulnerability from csaf_suse
Published
2019-11-28 09:02
Modified
2019-11-28 09:02
Summary
Security update for libidn2

Notes

Title of the patch
Security update for libidn2
Description of the patch
This update for libidn2 to version 2.2.0 fixes the following issues: - CVE-2019-12290: Fixed an improper round-trip check when converting A-labels to U-labels (bsc#1154884). - CVE-2019-18224: Fixed a heap-based buffer overflow that was caused by long domain strings (bsc#1154887).
Patchnames
SUSE-2019-3086,SUSE-SLE-Module-Basesystem-15-2019-3086,SUSE-SLE-Module-Basesystem-15-SP1-2019-3086,SUSE-SLE-Module-Development-Tools-OBS-15-2019-3086,SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-3086
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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      "text": "moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
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      }
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        "title": "Title of the patch"
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        "category": "description",
        "text": "This update for libidn2 to version 2.2.0 fixes the following issues:\n\n- CVE-2019-12290: Fixed an improper round-trip check when converting A-labels to U-labels (bsc#1154884).\n- CVE-2019-18224: Fixed a heap-based buffer overflow that was caused by long domain strings (bsc#1154887).\n",
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      },
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        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
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    "publisher": {
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      },
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  "vulnerabilities": [
    {
      "cve": "CVE-2019-12290",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2019-12290"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the inclusion of certain punycoded Unicode characters (that would be discarded when converted first to a Unicode label and then back to an ASCII label), arbitrary domains can be impersonated.",
          "title": "CVE description"
        }
      ],
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      "references": [
        {
          "category": "external",
          "summary": "CVE-2019-12290",
          "url": "https://www.suse.com/security/cve/CVE-2019-12290"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1154884 for CVE-2019-12290",
          "url": "https://bugzilla.suse.com/1154884"
        }
      ],
      "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",
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        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.0"
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      ],
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        {
          "category": "impact",
          "date": "2019-11-28T09:02:27Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2019-12290"
    },
    {
      "cve": "CVE-2019-18224",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2019-18224"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string.",
          "title": "CVE description"
        }
      ],
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          "summary": "SUSE Bug 1154887 for CVE-2019-18224",
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        {
          "category": "vendor_fix",
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            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
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          },
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      ],
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        {
          "category": "impact",
          "date": "2019-11-28T09:02:27Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2019-18224"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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