CVE-2018-8099

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-8099
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-8099.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-8099
Downstream
Related
Published
2018-03-14T00:29:00Z
Modified
2025-10-21T04:39:22.065923Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Incorrect returning of an error code in the index.c:read_entry() function leads to a double free in libgit2 before v0.26.2, which allows an attacker to cause a denial of service via a crafted repository index file.

References

Affected packages

Git / github.com/libgit2/libgit2

Affected ranges

Type
GIT
Repo
https://github.com/libgit2/libgit2
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
58a6fe94cb851f71214dbefac3f9bffee437d6fe

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-rc1
v0.27.0-rc2
v0.3.0
v0.8.0

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "54434640033148516061231194138629026265",
                "36005312606787468733691535169613857896",
                "20406774513225240641428088838518152789",
                "31152256589248188643522889485772072262",
                "333018302007796322857284296544971108009",
                "10474665604692016785909399706669282923",
                "118852015686781280320926685007600972444",
                "334926489830149146612760990200220186931",
                "34578972368817921048594679401107949855",
                "67938626018468066344711208432715017404",
                "104549862364235433960528485759213327713",
                "895104035598238706338726863454189642",
                "333691659661794338377060553396893695292",
                "225188868774070178604722169567298450289",
                "178421009659369774024887256913739816277",
                "164098357496020222110408314788895883612",
                "201908675194593531614919158297368280763",
                "88303667997138751197628739510642223009",
                "108060129305723536833558510022955542062",
                "155556404635052772361138247102782480973",
                "93917638411116238411790677871894336141",
                "89926923003986250422445763207465218698",
                "156324533981147638834860265256208246410",
                "221065977889216699488749717955358282063",
                "73630240176910640457380312420342491903",
                "150355747291049439676457778792698228849",
                "239800797623572347964284585324405070738",
                "36565342770416434674233130777148102467",
                "12324359012331978738579947485860681388"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2018-8099-5d41732f",
        "target": {
            "file": "src/index.c"
        },
        "source": "https://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe",
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "digest": {
            "function_hash": "198063612693010879224485591649861150621",
            "length": 2344.0
        },
        "deprecated": false,
        "id": "CVE-2018-8099-f70f94cb",
        "target": {
            "function": "read_entry",
            "file": "src/index.c"
        },
        "source": "https://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe",
        "signature_type": "Function"
    }
]