ghsa-6wcm-vmc4-h93p
Vulnerability from github
Published
2022-05-24 17:09
Modified
2024-03-27 18:32
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-20454"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-02-14T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \\X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.",
  "id": "GHSA-6wcm-vmc4-h93p",
  "modified": "2024-03-27T18:32:37Z",
  "published": "2022-05-24T17:09:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20454"
    },
    {
      "type": "WEB",
      "url": "https://bugs.exim.org/show_bug.cgi?id=2421"
    },
    {
      "type": "WEB",
      "url": "https://bugs.php.net/bug.php?id=78338"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1735494"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00014.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OQRAHYHLRNMBTPR3KXVM27NSZP3KTOPI"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202006-16"
    },
    {
      "type": "WEB",
      "url": "https://vcs.pcre.org/pcre2?view=revision\u0026revision=1092"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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