CVE-2019-19768 (GCVE-0-2019-19768)

Vulnerability from cvelistv5 – Published: 2019-12-12 19:38 – Updated: 2024-08-05 02:25
VLAI
Summary
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://bugzilla.kernel.org/show_bug.cgi?id=205711 x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020010… x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://usn.ubuntu.com/4344-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4345-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4342-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4346-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698 vendor-advisoryx_refsource_DEBIAN
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      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-19768\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-12-12T20:15:17.663\",\"lastModified\":\"2024-11-21T04:35:20.740\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux versi\u00f3n 5.4.0-rc2, se presenta un uso de la memoria previamente liberada en la funci\u00f3n __blk_add_trace en el archivo kernel/trace/blktrace.c (que se usa para completar una estructura blk_io_trace y colocarla en un per-cpu sub-buffer).\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"19F0AF6E-E2DF-4D4C-840E-7B66D0A2B2A3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.4.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"13BDAE24-5AE5-4E68-A325-18C8383BBDFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.4.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF8CE461-5227-46BC-B913-3BF09141554E\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://bugzilla.kernel.org/show_bug.cgi?id=205711\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20200103-0001/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/4342-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/4344-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/4345-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://usn.ubuntu.com/4346-1/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4698\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.kernel.org/show_bug.cgi?id=205711\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20200103-0001/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4342-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4344-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4345-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4346-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.debian.org/security/2020/dsa-4698\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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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.