CVE-2019-18660 (GCVE-0-2019-18660)

Vulnerability from cvelistv5 – Published: 2019-11-27 22:11 – Updated: 2024-08-05 01:54
VLAI
Summary
The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • n/a
Assigner
References
URL Tags
https://www.openwall.com/lists/oss-security/2019/… x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t… x_refsource_MISC
http://www.openwall.com/lists/oss-security/2019/11/27/1 mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://security.netapp.com/advisory/ntap-2020010… x_refsource_CONFIRM
https://usn.ubuntu.com/4228-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4227-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4226-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4225-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4228-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4227-2/ vendor-advisoryx_refsource_UBUNTU
https://seclists.org/bugtraq/2020/Jan/10 mailing-listx_refsource_BUGTRAQ
http://packetstormsecurity.com/files/155890/Slack… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2020:0174 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/4225-2/ vendor-advisoryx_refsource_UBUNTU
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      "id": "CVE-2019-18660",
      "lastModified": "2024-11-21T04:33:28.500",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 4.7, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.0, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:M/Au:N/C:P/I:N/A:N\", \"baseScore\": 1.9, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 3.4, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-11-27T23:15:10.960",
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      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-200\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-18660\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-11-27T23:15:10.960\",\"lastModified\":\"2024-11-21T04:33:28.500\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.\"},{\"lang\":\"es\",\"value\":\"El kernel de Linux anterior a la versi\u00f3n  5.4.1 en powerpc permite la exposici\u00f3n de informaci\u00f3n porque la mitigaci\u00f3n Spectre-RSB no est\u00e1 implementada para todas las CPU aplicables, tambi\u00e9n conocido como CID-39e72bf96f58. Esto est\u00e1 relacionado con arch / powerpc / kernel / entry_64.S y arch / powerpc / kernel / 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:28:35+00:00",
      "cve": "CVE-2019-18660",
      "id": "CVE-2019-18660",
      "initial_release_date": "2019-11-28T00:00:00+00:00",
      "product_status:fixed": "782",
      "product_status:known_affected": "17",
      "product_status:known_not_affected": "29",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: powerpc: incomplete Spectre-RSB mitigation leads to information exposure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-18660.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.