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 v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

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

V2 Legend

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/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://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb	Patch Third Party Advisory
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://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:*:*:*:*:*:*:*

Information

Published : 2020-04-27 10:15

Updated : 2023-02-23 16:15

NVD link : CVE-2020-12278

Mitre link : CVE-2020-12278

JSON object : View

CWE

CWE-706

Use of Incorrectly-Resolved Name or Reference

Products Affected

debian

debian_linux

libgit2

libgit2

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4", "name": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0", "name": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb", "name": "https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj", "name": "https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01", "name": "https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html", "name": "[debian-lts-announce] 20220321 [SECURITY] [DLA 2936-1] libgit2 security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html", "name": "[debian-lts-announce] 20230223 [SECURITY] [DLA 3340-1] libgit2 security update", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-706"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-12278", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"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"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"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}}, "publishedDate": "2020-04-27T17:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "0.28.4"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-24T00:15Z"}

9.8 /10