{ "containers": { "cna": { "affected": [ { "product": "Cygwin-Git", "vendor": "me-and", "versions": [ { "status": "affected", "version": "< 2.31.1-2" } ] } ], "descriptions": [ { "lang": "en", "value": "Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-20", "description": "CWE-20: Improper Input Validation ", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-04-29T20:35:20", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch" }, { "tags": [ "x_refsource_MISC" ], "url": "https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html" }, { "tags": [ "x_refsource_MISC" ], "url": "https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw%40mail.gmail.com/T/#u" } ], "source": { "advisory": "GHSA-rmp3-wq55-f557", "discovery": "UNKNOWN" }, "title": "Arbitrary code execution when checking out an attacker-controlled Git branch", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-29468", "STATE": "PUBLIC", "TITLE": "Arbitrary code execution when checking out an attacker-controlled Git branch" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cygwin-Git", "version": { "version_data": [ { "version_value": "< 2.31.1-2" } ] } } ] }, "vendor_name": "me-and" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-20: Improper Input Validation " } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557", "refsource": "CONFIRM", "url": "https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557" }, { "name": "https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch", "refsource": "MISC", "url": "https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch" }, { "name": "https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html", "refsource": "MISC", "url": "https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html" }, { "name": "https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw@mail.gmail.com/T/#u", "refsource": "MISC", "url": "https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw@mail.gmail.com/T/#u" } ] }, "source": { "advisory": "GHSA-rmp3-wq55-f557", "discovery": "UNKNOWN" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T22:11:05.331Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw%40mail.gmail.com/T/#u" } ] } ] }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-29468", "datePublished": "2021-04-29T20:35:20", "dateReserved": "2021-03-30T00:00:00", "dateUpdated": "2024-08-03T22:11:05.331Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }