{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-04T21:13:30.821","vulnerabilities":[{"cve":{"id":"CVE-2023-6779","sourceIdentifier":"secalert@redhat.com","published":"2024-01-31T14:15:48.700","lastModified":"2026-05-12T11:16:18.220","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"An off-by-one heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer."},{"lang":"es","value":"Se encontró un desbordamiento de búfer en la región Heap de la memoria de off-by-one en la función __vsyslog_internal de la librería glibc. Esta función es llamada por las funciones syslog y vsyslog. Este problema ocurre cuando estas funciones se llaman con un mensaje mayor que INT_MAX bytes, lo que genera un cálculo incorrecto del tamaño del búfer para almacenar el mensaje, lo que provoca un bloqueo de la aplicación. Este problema afecta a glibc 2.37 y posteriores."}],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/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}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-122"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*","versionStartIncluding":"2.37","versionEndExcluding":"2.39","matchCriteriaId":"8A5153FA-49E9-457F-94BB-202CACA41C76"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*","matchCriteriaId":"CC559B26-5DFC-4B7A-A27C-B77DE755DFF9"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*","matchCriteriaId":"B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646"}]}]}],"references":[{"url":"http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html","source":"secalert@redhat.com","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://seclists.org/fulldisclosure/2024/Feb/3","source":"secalert@redhat.com","tags":["Exploit","Mailing List","Third Party Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2023-6779","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2254395","source":"secalert@redhat.com","tags":["Issue Tracking"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/","source":"secalert@redhat.com","tags":["Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/","source":"secalert@redhat.com","tags":["Mailing List"]},{"url":"https://security.gentoo.org/glsa/202402-01","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20240223-0006/","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2024/01/30/6","source":"secalert@redhat.com","tags":["Exploit","Mailing List"]},{"url":"https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://seclists.org/fulldisclosure/2024/Feb/3","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mailing List","Third Party Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2023-6779","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2254395","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List"]},{"url":"https://security.gentoo.org/glsa/202402-01","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20240223-0006/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2024/01/30/6","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mailing List"]},{"url":"https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}]}}]}