cve-2018-16884
Vulnerability from cvelistv5
Published
2018-12-18 22:00
Modified
2024-08-05 10:32
Severity ?
6.5 (Medium) - CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Summary
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
References
secalert@redhat.comhttp://www.securityfocus.com/bid/106253Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:1873Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:1891Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:2696Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:2730Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:3517Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2020:0204Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://patchwork.kernel.org/cover/10733767/Patch, Vendor Advisory
secalert@redhat.comhttps://patchwork.kernel.org/patch/10733769/Patch, Vendor Advisory
secalert@redhat.comhttps://support.f5.com/csp/article/K21430012Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3932-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3932-2/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3980-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3980-2/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3981-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3981-2/Third Party Advisory
secalert@redhat.comhttps://www.oracle.com/security-alerts/cpuApr2021.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/106253Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1873Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1891Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2696Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2730Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:3309Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:3517Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2020:0204Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://patchwork.kernel.org/cover/10733767/Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://patchwork.kernel.org/patch/10733769/Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K21430012Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3932-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3932-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3980-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3980-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3981-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3981-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuApr2021.htmlThird Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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    "cveId": "CVE-2018-16884",
    "datePublished": "2018-12-18T22:00:00",
    "dateReserved": "2018-09-11T00:00:00",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2018-16884\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2018-12-18T22:29:04.713\",\"lastModified\":\"2024-11-21T03:53:31.757\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in the Linux kernel\u0027s NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.\"},{\"lang\":\"es\",\"value\":\"Se ha encontrado un error en el subsistema de archivos NFS41+ del kernel de Linux. Las comparticiones de NFS41+ montadas en diferentes espacios de nombre al mismo tiempo pueden hacer que bc_svc_process() emplee el ID de canal trasero err\u00f3neo y provoque una vulnerabilidad de uso de memoria previamente liberada. As\u00ed, un usuario contenedor malicioso puede provocar la corrupci\u00f3n de la memoria host del kernel y un p\u00e1nico del sistema. Debido a la naturaleza del error, no se puede descartar totalmente un escalado de 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  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.