CVE-2018-16884 (GCVE-0-2018-16884)

Vulnerability from cvelistv5 – Published: 2018-12-18 22:00 – Updated: 2024-08-05 10:32
VLAI
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.
Severity
6.5 (Medium)
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 986 records in the last 180 days details
References
URL Tags
http://www.securityfocus.com/bid/106253 vdb-entryx_refsource_BID
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3932-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3932-2/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3981-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3980-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3980-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3981-2/ vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:1873 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1891 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2696 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2730 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3309 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3517 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0204 vendor-advisoryx_refsource_REDHAT
https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://patchwork.kernel.org/patch/10733769/ x_refsource_CONFIRM
https://patchwork.kernel.org/cover/10733767/ x_refsource_CONFIRM
https://support.f5.com/csp/article/K21430012 x_refsource_CONFIRM
Impacted products
Vendor Product Version CPE status
[UNKNOWN] kernel: Affected: n/a
guessed Create a notification for this product.
Date Public
2018-12-18 00:00
Show details on NVD website
To clipboard 

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                "baseScore": 8.0,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.1,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
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      "cve": "CVE-2018-16884",
      "id": "CVE-2018-16884",
      "initial_release_date": "2018-11-27T00:00:00+00:00",
      "product_status:fixed": "543",
      "product_status:known_not_affected": "16",
      "source": "Red Hat CSAF VEX",
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-16884.json",
      "version": "3"
    }
  }
}



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