gsd-2021-4154
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.
Aliases
Aliases
CVE-2021-4154


To clipboard 

{
   GSD: {
      alias: "CVE-2021-4154",
      description: "A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.",
      id: "GSD-2021-4154",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-4154.html",
         "https://access.redhat.com/errata/RHSA-2022:0231",
         "https://access.redhat.com/errata/RHSA-2022:0187",
         "https://access.redhat.com/errata/RHSA-2022:0186",
         "https://access.redhat.com/errata/RHSA-2022:0825",
         "https://access.redhat.com/errata/RHSA-2022:0819",
         "https://linux.oracle.com/cve/CVE-2021-4154.html",
         "https://access.redhat.com/errata/RHSA-2022:0841",
         "https://access.redhat.com/errata/RHSA-2022:0849",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-4154",
         ],
         details: "A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.",
         id: "GSD-2021-4154",
         modified: "2023-12-13T01:23:11.538615Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
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            ID: "CVE-2021-4154",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "kernel",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "Fixed in kernel 5.14 rc2",
                                    },
                                 ],
                              },
                           },
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                     },
                     vendor_name: "n/a",
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               },
            ],
         },
         problemtype: {
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               {
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                     {
                        lang: "eng",
                        value: "CWE-416",
                     },
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         },
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                  refsource: "MISC",
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               {
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               },
               {
                  name: "https://cloud.google.com/anthos/clusters/docs/security-bulletins#gcp-2022-002",
                  refsource: "MISC",
                  url: "https://cloud.google.com/anthos/clusters/docs/security-bulletins#gcp-2022-002",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20220225-0004/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20220225-0004/",
               },
            ],
         },
      },
      "nvd.nist.gov": {
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                  operator: "OR",
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               {
                  children: [],
                  cpe_match: [
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                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*",
                        cpe_name: [],
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                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
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                     {
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         cve: {
            CVE_data_meta: {
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               ID: "CVE-2021-4154",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
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                     value: "A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.",
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            problemtype: {
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            references: {
               reference_data: [
                  {
                     name: "https://bugzilla.redhat.com/show_bug.cgi?id=2034514",
                     refsource: "MISC",
                     tags: [
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                     ],
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                     name: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0462726e7ef281c35a7a4ae33e93ee2bc9975b",
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                  {
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         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "LOCAL",
                  authentication: "NONE",
                  availabilityImpact: "COMPLETE",
                  baseScore: 7.2,
                  confidentialityImpact: "COMPLETE",
                  integrityImpact: "COMPLETE",
                  vectorString: "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                  version: "2.0",
               },
               exploitabilityScore: 3.9,
               impactScore: 10,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "HIGH",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 8.8,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "LOW",
                  scope: "CHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 2,
               impactScore: 6,
            },
         },
         lastModifiedDate: "2023-01-19T15:53Z",
         publishedDate: "2022-02-04T23:15Z",
      },
   },
}


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