gsd-2023-6779
Vulnerability from gsd
Modified
2023-12-14 06:01
Details
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.
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-6779" ], "details": "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.", "id": "GSD-2023-6779", "modified": "2023-12-14T06:01:34.781534Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2023-6779", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "glibc", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "status": "unaffected", "version": "2.39" } ] } } ] } } ] }, "vendor_name": "n/a" }, { "product": { "product_data": [ { "product_name": "Red Hat Enterprise Linux 6", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 7", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 8", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 9", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } } ] }, "vendor_name": "Red Hat" }, { "product": { "product_data": [ { "product_name": "Fedora", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } } ] }, "vendor_name": "Fedora" } ] } }, "credits": [ { "lang": "en", "value": "Red Hat would like to thank Qualys Threat Research Unit for reporting this issue." } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "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." } ] }, "impact": { "cvss": [ { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-122", "lang": "eng", "value": "Heap-based Buffer Overflow" } ] } ] }, "references": { "reference_data": [ { "name": "http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html" }, { "name": "http://seclists.org/fulldisclosure/2024/Feb/3", "refsource": "MISC", "url": "http://seclists.org/fulldisclosure/2024/Feb/3" }, { "name": "https://access.redhat.com/security/cve/CVE-2023-6779", "refsource": "MISC", "url": "https://access.redhat.com/security/cve/CVE-2023-6779" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2254395", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254395" }, { "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/", "refsource": "MISC", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/" }, { "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/", "refsource": "MISC", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/" }, { "name": "https://security.gentoo.org/glsa/202402-01", "refsource": "MISC", "url": "https://security.gentoo.org/glsa/202402-01" }, { "name": "https://www.openwall.com/lists/oss-security/2024/01/30/6", "refsource": "MISC", "url": "https://www.openwall.com/lists/oss-security/2024/01/30/6" }, { "name": "https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt", "refsource": "MISC", "url": "https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt" }, { "name": "https://security.netapp.com/advisory/ntap-20240223-0006/", "refsource": "MISC", "url": "https://security.netapp.com/advisory/ntap-20240223-0006/" } ] } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*", "matchCriteriaId": "8A5153FA-49E9-457F-94BB-202CACA41C76", "versionEndExcluding": "2.39", "versionStartIncluding": "2.37", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "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", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "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 encontr\u00f3 un desbordamiento de b\u00fafer en la regi\u00f3n Heap de la memoria de off-by-one en la funci\u00f3n __vsyslog_internal de la librer\u00eda glibc. Esta funci\u00f3n 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 c\u00e1lculo incorrecto del tama\u00f1o del b\u00fafer para almacenar el mensaje, lo que provoca un bloqueo de la aplicaci\u00f3n. Este problema afecta a glibc 2.37 y posteriores." } ], "id": "CVE-2023-6779", "lastModified": "2024-02-27T17:26:48.247", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "secalert@redhat.com", "type": "Secondary" } ] }, "published": "2024-01-31T14:15:48.700", "references": [ { "source": "secalert@redhat.com", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html" }, { "source": "secalert@redhat.com", "tags": [ "Exploit", "Mailing List", "Third Party Advisory" ], "url": "http://seclists.org/fulldisclosure/2024/Feb/3" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/security/cve/CVE-2023-6779" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254395" }, { "source": "secalert@redhat.com", "tags": [ "Mailing List" ], "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": [ "Third Party Advisory" ], "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": [ "Exploit", "Mailing List" ], "url": "https://www.openwall.com/lists/oss-security/2024/01/30/6" }, { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-787" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-122" } ], "source": "secalert@redhat.com", "type": "Secondary" } ] } } } }
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Sightings
Author | Source | Type | Date |
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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.