ghsa-cxqg-5c27-qx45
Vulnerability from github
Published
2022-05-13 01:08
Modified
2022-05-13 01:08
Severity ?
Details
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.
{
"affected": [],
"aliases": [
"CVE-2018-16884"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-12-18T22:29:00Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-cxqg-5c27-qx45",
"modified": "2022-05-13T01:08:47Z",
"published": "2022-05-13T01:08:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16884"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3981-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3981-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3980-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3980-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3932-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3932-1"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K21430012"
},
{
"type": "WEB",
"url": "https://patchwork.kernel.org/patch/10733769"
},
{
"type": "WEB",
"url": "https://patchwork.kernel.org/cover/10733767"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1660375"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2018-16884"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:2854"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0204"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3517"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3309"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2730"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2696"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1891"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1873"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106253"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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- 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.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- 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.