CVE-2019-3016 (GCVE-0-2019-3016)

Vulnerability from cvelistv5 – Published: 2020-01-31 19:50 – Updated: 2024-09-30 15:47
VLAI?
Summary
In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.
Severity ?
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
linux linux_kernel Affected: 4.10 to 5.6
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The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-362\", \"description\": \"CWE-362\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200\"}]}], \"providerMetadata\": {\"orgId\": \"43595867-4340-4103-b7a2-9a5208d29a85\", \"shortName\": \"oracle\", \"dateUpdated\": \"2020-06-10T19:06:37\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": [[{\"version\": \"3.1\", \"vectorString\": \"6.2/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\"}]]}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"4.10 to 5.6\"}]}, \"product_name\": \"linux_kernel\"}]}, \"vendor_name\": \"linux\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2020/01/30/4\", \"name\": \"[oss-security] 20200130 CVE-2019-3016: information leak within a KVM guest\", \"refsource\": \"MLIST\"}, {\"url\": \"https://lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini@redhat.com/\", \"name\": \"https://lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini@redhat.com/\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1792167\", \"name\": \"https://bugzilla.redhat.com/show_bug.cgi?id=1792167\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e\", \"name\": \"https://git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7\", \"name\": \"https://git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589\", \"name\": \"https://git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796\", \"name\": \"https://git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e\", \"name\": \"https://git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20200313-0003/\", \"name\": \"https://security.netapp.com/advisory/ntap-20200313-0003/\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://usn.ubuntu.com/4300-1/\", \"name\": \"USN-4300-1\", \"refsource\": \"UBUNTU\"}, {\"url\": \"https://usn.ubuntu.com/4301-1/\", \"name\": \"USN-4301-1\", \"refsource\": \"UBUNTU\"}, {\"url\": \"http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html\", \"name\": \"http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html\", \"refsource\": \"MISC\"}, {\"url\": \"https://www.debian.org/security/2020/dsa-4699\", \"name\": \"DSA-4699\", \"refsource\": \"DEBIAN\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-362\"}]}, {\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-200\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2019-3016\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"secalert_us@oracle.com\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-3016\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-30T15:47:55.260Z\", \"dateReserved\": \"2018-12-14T00:00:00\", \"assignerOrgId\": \"43595867-4340-4103-b7a2-9a5208d29a85\", \"datePublished\": \"2020-01-31T19:50:14\", \"assignerShortName\": \"oracle\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.