cve-2018-20796
Vulnerability from cvelistv5
Published
2019-02-26 02:00
Modified
2024-08-05 12:12
Severity ?
Summary
In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\\1\\1|t1|\\\2537)+' in grep.
References
cve@mitre.orghttp://www.securityfocus.com/bid/107160Third Party Advisory, VDB Entry
cve@mitre.orghttps://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141Exploit, Mailing List, Vendor Advisory
cve@mitre.orghttps://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlExploit, Mailing List, Vendor Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20190315-0002/Patch, Third Party Advisory
cve@mitre.orghttps://support.f5.com/csp/article/K26346590?utm_source=f5support&amp%3Butm_medium=RSS
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/107160Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141Exploit, Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlExploit, Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190315-0002/Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K26346590?utm_source=f5support&amp%3Butm_medium=RSS
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:12:28.627Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190315-0002/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html"
          },
          {
            "name": "107160",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/107160"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp%3Butm_medium=RSS"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2019-02-25T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by \u0027(\\227|)(\\\\1\\\\1|t1|\\\\\\2537)+\u0027 in grep."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-11-05T20:06:27",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190315-0002/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html"
        },
        {
          "name": "107160",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/107160"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp%3Butm_medium=RSS"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-20796",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by \u0027(\\227|)(\\\\1\\\\1|t1|\\\\\\2537)+\u0027 in grep."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.netapp.com/advisory/ntap-20190315-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20190315-0002/"
            },
            {
              "name": "https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html",
              "refsource": "MISC",
              "url": "https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html"
            },
            {
              "name": "107160",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/107160"
            },
            {
              "name": "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141",
              "refsource": "MISC",
              "url": "https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141"
            },
            {
              "name": "https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp;utm_medium=RSS",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp;utm_medium=RSS"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-20796",
    "datePublished": "2019-02-26T02:00:00",
    "dateReserved": "2019-02-25T00:00:00",
    "dateUpdated": "2024-08-05T12:12:28.627Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"2.29\", \"matchCriteriaId\": \"60F1CB2F-5B42-4134-8328-480F5F07932D\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"4433FEA1-564D-4592-BB12-1C194B543928\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E7CF3019-975D-40BB-A8A4-894E62BD3797\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E94F7F59-1785-493F-91A7-5F5EA5E87E4D\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by \u0027(\\\\227|)(\\\\\\\\1\\\\\\\\1|t1|\\\\\\\\\\\\2537)+\u0027 in grep.\"}, {\"lang\": \"es\", \"value\": \"En la biblioteca GNU C (tambi\\u00e9n conocida como glibc o libc6), hasta la versi\\u00f3n 2.29, check_dst_limits_calc_pos_1 en posix/regexec.c tiene una recursi\\u00f3n no controlada, tal y como queda demostrado con \\\"(\\\\227|)(\\\\\\\\1\\\\\\\\1|t1|\\\\\\\\\\\\2537)+\\\" en grep.\"}]",
      "id": "CVE-2018-20796",
      "lastModified": "2024-11-21T04:02:11.827",
      "metrics": "{\"cvssMetricV30\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-02-26T02:29:00.450",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/107160\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20190315-0002/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp%3Butm_medium=RSS\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securityfocus.com/bid/107160\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20190315-0002/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp%3Butm_medium=RSS\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-674\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-20796\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-02-26T02:29:00.450\",\"lastModified\":\"2024-11-21T04:02:11.827\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by \u0027(\\\\227|)(\\\\\\\\1\\\\\\\\1|t1|\\\\\\\\\\\\2537)+\u0027 in grep.\"},{\"lang\":\"es\",\"value\":\"En la biblioteca GNU C (tambi\u00e9n conocida como glibc o libc6), hasta la versi\u00f3n 2.29, check_dst_limits_calc_pos_1 en posix/regexec.c tiene una recursi\u00f3n no controlada, tal y como queda demostrado con \\\"(\\\\227|)(\\\\\\\\1\\\\\\\\1|t1|\\\\\\\\\\\\2537)+\\\" en grep.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-674\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.29\",\"matchCriteriaId\":\"60F1CB2F-5B42-4134-8328-480F5F07932D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4433FEA1-564D-4592-BB12-1C194B543928\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7CF3019-975D-40BB-A8A4-894E62BD3797\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E94F7F59-1785-493F-91A7-5F5EA5E87E4D\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/107160\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20190315-0002/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp%3Butm_medium=RSS\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.securityfocus.com/bid/107160\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20190315-0002/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://support.f5.com/csp/article/K26346590?utm_source=f5support\u0026amp%3Butm_medium=RSS\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.