FKIE_CVE-2022-3821

Vulnerability from fkie_nvd - Published: 2022-11-08 22:15 - Updated: 2026-06-17 05:00
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2139327Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4ePatch, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/issues/23928Exploit, Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/pull/23933Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
secalert@redhat.comhttps://security.gentoo.org/glsa/202305-15
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2139327Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4ePatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/issues/23928Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/pull/23933Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202305-15
Impacted products
Vendor Product Version
systemd_project systemd *
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
fedoraproject fedora 35
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "systemd",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in systemd v252-rc1"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema de error de uno en uno en Systemd en la funci\u00f3n format_timespan() de time-util.c. Un atacante podr\u00eda proporcionar valores espec\u00edficos de tiempo y precisi\u00f3n que provoquen una saturaci\u00f3n del b\u00fafer en format_timespan(), lo que provocar\u00e1 una Denegaci\u00f3n de Servicio (DoS)."
    }
  ],
  "id": "CVE-2022-3821",
  "lastModified": "2026-06-17T05:00:21.910",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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          "confidentialityImpact": "NONE",
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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          "role": "CISA Coordinator",
          "timestamp": "2025-05-02T18:10:56.621902Z",
          "version": "2.0.3"
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  "published": "2022-11-08T22:15:16.700",
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-193"
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      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}



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