github - ghsa-xjc2-37xp-26m5

ghsa-xjc2-37xp-26m5

Vulnerability from github

Published

2022-05-24 19:06

Modified

2022-05-24 19:06

Details

The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). NOTE: bad0a746e9f4cf260dedba5828d9645d50176aac is cited in the OSV "fixed" field but does not have a code change.

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{
   affected: [],
   aliases: [
      "CVE-2021-36087",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-125",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2021-07-01T03:15:00Z",
      severity: "MODERATE",
   },
   details: "The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). NOTE: bad0a746e9f4cf260dedba5828d9645d50176aac is cited in the OSV \"fixed\" field but does not have a code change.",
   id: "GHSA-xjc2-37xp-26m5",
   modified: "2022-05-24T19:06:45Z",
   published: "2022-05-24T19:06:45Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2021-36087",
      },
      {
         type: "WEB",
         url: "https://github.com/SELinuxProject/selinux/commit/340f0eb7f3673e8aacaf0a96cbfcd4d12a405521",
      },
      {
         type: "WEB",
         url: "https://github.com/SELinuxProject/selinux/commit/bad0a746e9f4cf260dedba5828d9645d50176aac",
      },
      {
         type: "WEB",
         url: "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32675",
      },
      {
         type: "WEB",
         url: "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-585.yaml",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR",
      },
      {
         type: "WEB",
         url: "https://lore.kernel.org/selinux/CAEN2sdqJKHvDzPnxS-J8grU8fSf32DDtx=kyh84OsCq_Vm+yaQ@mail.gmail.com/T",
      },
   ],
   schema_version: "1.4.0",
   severity: [],
}

cve-2021-36087

Vulnerability from cvelistv5

Published

2021-07-01 02:49

Modified

2024-08-04 00:47

Severity ?

Summary

The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). This occurs because there is sometimes a lack of checks for invalid statements in an optional block.

References

▼	URL	Tags
	https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-585.yaml	x_refsource_MISC
	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32675	x_refsource_MISC
	https://lore.kernel.org/selinux/CAEN2sdqJKHvDzPnxS-J8grU8fSf32DDtx=kyh84OsCq_Vm+yaQ%40mail.gmail.com/T/	x_refsource_MISC
	https://github.com/SELinuxProject/selinux/commit/340f0eb7f3673e8aacaf0a96cbfcd4d12a405521	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/	vendor-advisory, x_refsource_FEDORA

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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{
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            references: [
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                  tags: [
                     "x_refsource_MISC",
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                  ],
                  url: "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-585.yaml",
               },
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                  url: "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32675",
               },
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               },
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                  tags: [
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                  url: "https://github.com/SELinuxProject/selinux/commit/340f0eb7f3673e8aacaf0a96cbfcd4d12a405521",
               },
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                  name: "FEDORA-2021-67efe88c29",
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                     "x_transferred",
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                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
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               vendor: "n/a",
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         providerMetadata: {
            dateUpdated: "2021-11-15T07:06:34",
            orgId: "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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               tags: [
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               url: "https://lore.kernel.org/selinux/CAEN2sdqJKHvDzPnxS-J8grU8fSf32DDtx=kyh84OsCq_Vm+yaQ%40mail.gmail.com/T/",
            },
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               tags: [
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            {
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               tags: [
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               url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/",
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         x_legacyV4Record: {
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               ID: "CVE-2021-36087",
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                        product: {
                           product_data: [
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                                 product_name: "n/a",
                                 version: {
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                     url: "https://lore.kernel.org/selinux/CAEN2sdqJKHvDzPnxS-J8grU8fSf32DDtx=kyh84OsCq_Vm+yaQ@mail.gmail.com/T/",
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                  },
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      datePublished: "2021-07-01T02:49:55",
      dateReserved: "2021-07-01T00:00:00",
      dateUpdated: "2024-08-04T00:47:43.807Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

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.
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.

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