CVE-2020-12278

An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj	Third Party Advisory
https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01	Patch Third Party Advisory
https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb	Patch Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.28.4	Release Notes Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.99.0	Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-04-27 17:15

Updated : 2023-02-24 00:15

NVD link : CVE-2020-12278

Mitre link : CVE-2020-12278

CVE.ORG link : CVE-2020-12278

JSON object : View

Products Affected

debian

debian_linux

libgit2

libgit2

CWE

CWE-706

Use of Incorrectly-Resolved Name or Reference

{"id": "CVE-2020-12278", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-04-27T17:15:13.407", "references": [{"url": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-706"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en libgit2 versiones anteriores a 0.28.4 y versiones 0.9x anteriores a 0.99.0. El archivo path.c maneja inapropiadamente los nombres de archivo equivalentes que existen debido al Flujo de Datos Alternativo de NTFS. Esto puede permitir una ejecuci\u00f3n de c\u00f3digo remota al clonar un repositorio. Este problema es similar a CVE-2019-1352."}], "lastModified": "2023-02-24T00:15:11.263", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE4A6653-6AAA-4AE1-A3BB-7EDD3BB80EAD", "versionEndExcluding": "0.28.4"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}