gsd-2021-27645
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.
Aliases
Aliases
CVE-2021-27645


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-27645",
    "description": "The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.",
    "id": "GSD-2021-27645",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-27645.html",
      "https://access.redhat.com/errata/RHSA-2021:4358",
      "https://ubuntu.com/security/CVE-2021-27645",
      "https://advisories.mageia.org/CVE-2021-27645.html",
      "https://security.archlinux.org/CVE-2021-27645",
      "https://linux.oracle.com/cve/CVE-2021-27645.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-27645"
      ],
      "details": "The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.",
      "id": "GSD-2021-27645",
      "modified": "2023-12-13T01:23:36.174548Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-27645",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
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          }
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          },
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LZNT6KTMCCWPWXEOGSHD3YLYZKUGMH5/"
          },
          {
            "name": "GLSA-202107-07",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202107-07"
          },
          {
            "name": "[debian-lts-announce] 20221017 [SECURITY] [DLA 3152-1] glibc security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html"
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        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "2.33",
                "versionStartIncluding": "2.29",
                "vulnerable": true
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            ],
            "operator": "OR"
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe_name": [],
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                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
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                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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          }
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      },
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          "ID": "CVE-2021-27645"
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-415"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://sourceware.org/bugzilla/show_bug.cgi?id=27462",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
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                "Third Party Advisory"
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              "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=27462"
            },
            {
              "name": "FEDORA-2021-6749bfcfd9",
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            },
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            },
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            },
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              "refsource": "MLIST",
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              "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html"
            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 1.9,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 2.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.0,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-11-04T20:06Z",
      "publishedDate": "2021-02-24T15:15Z"
    }
  }
}


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