CVE-2020-12279
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-12279
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12279.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-12279
- Downstream
- Related
- Published
- 2020-04-27T17:15:13Z
- Modified
- 2025-10-15T11:33:12.741412Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. checkout.c mishandles equivalent filenames that exist because of NTFS short names. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1353.
- References
-
- https://github.com/git/git/security/advisories/GHSA-589j-mmg9-733v
- https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4
- https://github.com/libgit2/libgit2/releases/tag/v0.28.4
- https://github.com/libgit2/libgit2/releases/tag/v0.99.0
- https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
- https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html
Affected packages
Git / github.com/libgit2/libgit2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/libgit2/libgit2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixed
Affected versions
v0.*
v0.1.0
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.20.0
v0.21.0
v0.21.0-rc1
v0.21.0-rc2
v0.22.0
v0.22.0-rc1
v0.22.0-rc2
v0.23.0
v0.23.0-rc1
v0.23.0-rc2
v0.24.0
v0.24.0-rc1
v0.24.4
v0.25.0
v0.25.0-rc1
v0.25.0-rc2
v0.25.1
v0.26.0
v0.26.0-rc1
v0.26.0-rc2
v0.27.0
v0.27.0-rc1
v0.27.0-rc2
v0.27.0-rc3
v0.28.0
v0.28.0-rc1
v0.28.1
v0.28.2
v0.28.3
v0.3.0
v0.8.0
Database specific
{
"vanir_signatures": [
{
"id": "CVE-2020-12279-18c21614",
"signature_type": "Function",
"digest": {
"function_hash": "54554569915003734768761110712720175172",
"length": 109.0
},
"source": "https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4",
"target": {
"file": "tests/checkout/nasty.c",
"function": "test_checkout_nasty__git_tilde1"
},
"deprecated": false,
"signature_version": "v1"
},
{
"id": "CVE-2020-12279-577666bb",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"34151097703912068279059189515774524754",
"640971338307182747042490539310138101",
"261090504824042527251622828911835319539",
"190820267254834495437436494656192599698",
"109452042279548290592481542638704603152",
"183873679057880809488074463187073290050"
]
},
"source": "https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4",
"target": {
"file": "tests/checkout/nasty.c"
},
"deprecated": false,
"signature_version": "v1"
},
{
"id": "CVE-2020-12279-9b82710e",
"signature_type": "Function",
"digest": {
"function_hash": "270919345757994032373988505154932358300",
"length": 636.0
},
"source": "https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4",
"target": {
"file": "src/checkout.c",
"function": "checkout_verify_paths"
},
"deprecated": false,
"signature_version": "v1"
},
{
"id": "CVE-2020-12279-fa1bf32c",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"91163887863019740474463251087811095055",
"163293920236655175007224761102751500986",
"304947559022233408970519915295579978259",
"337098278619693989970552484739974126394"
]
},
"source": "https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4",
"target": {
"file": "src/checkout.c"
},
"deprecated": false,
"signature_version": "v1"
}
]
}