fkie_cve-2022-4543
Vulnerability from fkie_nvd
Published
2023-01-11 15:15
Modified
2025-04-08 20:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.
References
secalert@redhat.comhttps://www.openwall.com/lists/oss-security/2022/12/16/3Exploit, Mailing List, Third Party Advisory
secalert@redhat.comhttps://www.willsroot.io/2022/12/entrybleed.htmlExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2022/12/16/3Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.willsroot.io/2022/12/entrybleed.htmlExploit, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

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  "descriptions": [
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      "lang": "en",
      "value": "A flaw named \"EntryBleed\" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems."
    },
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      "lang": "es",
      "value": "Se encontr\u00f3 una falla denominada \"EntryBleed\" en el aislamiento de la tabla de p\u00e1ginas del kernel de Linux (KPTI). Este problema podr\u00eda permitir que un atacante local filtre la base KASLR a trav\u00e9s de canales laterales de captaci\u00f3n previa basados en la sincronizaci\u00f3n TLB para sistemas Intel."
    }
  ],
  "id": "CVE-2022-4543",
  "lastModified": "2025-04-08T20:15:18.790",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
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  "vulnStatus": "Modified",
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}


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