ghsa-jrrp-87j9-7387
Vulnerability from github
Published
2022-05-17 00:24
Modified
2022-05-17 00:24
Severity ?
7.1 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details

In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

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{
  "affected": [],
  "aliases": [
    "CVE-2017-13720"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-10-11T17:29:00Z",
    "severity": "HIGH"
  },
  "details": "In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because \u0027\\0\u0027 characters are incorrectly skipped in situations involving ? characters.",
  "id": "GHSA-jrrp-87j9-7387",
  "modified": "2022-05-17T00:24:43Z",
  "published": "2022-05-17T00:24:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13720"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1500690"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1054285"
    },
    {
      "type": "WEB",
      "url": "https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201711-08"
    },
    {
      "type": "WEB",
      "url": "https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3995"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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