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BREW-MIKUTTER-CVE-2020-7595 (GHSA-7553-JR98-VX47)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:14 – Updated: 2026-08-13 17:14 – Source website
VLAI
Summary
libxml as used in Nokogiri has an infinite loop in a certain end-of-file situation
Details

xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. The Nokogiri RubyGem has patched its vendored copy of libxml2 in order to prevent this issue from affecting nokogiri.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "nokogiri",
        "resource_purl": "pkg:gem/nokogiri@1.16.3",
        "upstream_fixed_in": "1.10.8"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "mikutter",
        "purl": "pkg:brew/mikutter"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "RubyGems",
        "key": "pkg:gem/nokogiri@1.16.3",
        "name": "nokogiri",
        "resource": "nokogiri",
        "strategy": "registry",
        "subject_version": "1.16.3"
      }
    ]
  },
  "details": "xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation.\nThe Nokogiri RubyGem has patched its vendored copy of libxml2 in order to prevent this issue from affecting nokogiri.",
  "id": "BREW-mikutter-CVE-2020-7595",
  "modified": "2026-08-13T17:14:10Z",
  "published": "2026-08-13T17:14:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7595"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/issues/1992"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4274-1"
    },
    {
      "type": "WEB",
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20200702-0005"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202010-04"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/545SPOI3ZPPNPX4TFRIVE4JVRTJRKULL"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/commit/0e1a49c89076"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sparklemotion/nokogiri"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2020-7595.yml"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libxml as used in Nokogiri has an infinite loop in a certain end-of-file situation",
  "upstream": [
    "GHSA-7553-jr98-vx47",
    "CVE-2020-7595"
  ]
}



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