fkie_cve-2022-2526
Vulnerability from fkie_nvd
Published
2022-09-09 15:15
Modified
2024-11-21 07:01
Severity ?
Summary
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.



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  "cveTags": [],
  "descriptions": [
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      "value": "A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in \u0027resolved-dns-stream.c\u0027 not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado una vulnerabilidad de uso de memoria previamente liberada en systemd. Este problema ocurre debido a que las funciones on_stream_io() y dns_stream_complete() en \"resolved-dns-stream.c\" no incrementan el conteo de referencias para el objeto DnsStream. Por lo tanto, otras funciones y callbacks llamados pueden hacer referencia al objeto DNSStream, causando un uso de memoria previamente liberada cuando la referencia sigue us\u00e1ndose m\u00e1s tarde"
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  "id": "CVE-2022-2526",
  "lastModified": "2024-11-21T07:01:11.383",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2022-09-09T15:15:10.107",
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