GHSA-PJRJ-FMXP-CMC4

Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2025-05-09 21:31
VLAI?
Details

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-26937"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-88"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-09T20:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.",
  "id": "GHSA-pjrj-fmxp-cmc4",
  "modified": "2025-05-09T21:31:06Z",
  "published": "2022-05-24T17:41:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26937"
    },
    {
      "type": "WEB",
      "url": "https://ftp.gnu.org/gnu/screen"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00031.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/screen-devel/2021-02/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202105-11"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250509-0004"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4861"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2021/02/09/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/02/09/8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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