CVE-2018-20856 (GCVE-0-2018-20856)

Vulnerability from cvelistv5 – Published: 2019-07-26 04:40 – Updated: 2024-08-05 12:12
VLAI
Summary
An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_MISC
https://github.com/torvalds/linux/commit/54648cf1… x_refsource_MISC
https://git.kernel.org/cgit/linux/kernel/git/torv… x_refsource_MISC
https://usn.ubuntu.com/4094-1/ vendor-advisoryx_refsource_UBUNTU
https://seclists.org/bugtraq/2019/Aug/18 mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4497 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Aug/26 mailing-listx_refsource_BUGTRAQ
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
http://packetstormsecurity.com/files/154059/Slack… x_refsource_MISC
https://usn.ubuntu.com/4116-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4118-1/ vendor-advisoryx_refsource_UBUNTU
https://security.netapp.com/advisory/ntap-2019090… x_refsource_CONFIRM
http://packetstormsecurity.com/files/154408/Kerne… x_refsource_MISC
https://support.f5.com/csp/article/K14673240?utm_… x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:3076 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3055 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3089 vendor-advisoryx_refsource_REDHAT
http://packetstormsecurity.com/files/154951/Kerne… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:3217 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0100 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0103 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0543 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0664 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0698 vendor-advisoryx_refsource_REDHAT
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In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.\"},{\"lang\":\"es\",\"value\":\"El servidor web en ZENworks Configuration Management (ZCM) de Novell  versi\u00f3n 10.3 y versi\u00f3n 11.2 anteriores a 11.2.4, no realiza apropiadamente la autenticaci\u00f3n para el archivo zenworks/jsp/index.jsp, lo que permite a los atacantes remotos realizar ataques de salto de directorio y en consecuencia cargar y ejecutar programas arbitrarios, por medio de una petici\u00f3n al puerto TCP 443.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"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:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.18.7\",\"matchCriteriaId\":\"92C6CD12-AE92-4AFB-91FA-F2A97F5537D8\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3055\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3076\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3089\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3217\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0100\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0103\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0543\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0664\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2020:0698\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing 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  }
}


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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.