ghsa-r454-8j2h-fwqp
Vulnerability from github
Published
2022-05-24 17:34
Modified
2023-02-13 00:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details

In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed t3GlyphStack->cache, which causes an heap-use-after-free problem. The codes of a previous fix for nested Type 3 characters wasn't correctly handling the case where a Type 3 char referred to another char in the same Type 3 font.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-25725"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-11-21T06:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack-\u003ecache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn\u0027t correctly handling the case where a Type 3 char referred to another char in the same Type 3 font.",
  "id": "GHSA-r454-8j2h-fwqp",
  "modified": "2023-02-13T00:31:19Z",
  "published": "2022-05-24T17:34:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25725"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725"
    },
    {
      "type": "WEB",
      "url": "https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41915"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZUU5QG6SSVRTKZTR3A72LDRVZETEI63"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLOYVJSM54IL6I5RY4QTJGRS7PIEG44X"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ZUU5QG6SSVRTKZTR3A72LDRVZETEI63"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLOYVJSM54IL6I5RY4QTJGRS7PIEG44X"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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