CVE-2020-35963

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Source
https://cve.org/CVERecord?id=CVE-2020-35963
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35963.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-35963
Aliases
Published
2021-01-03T19:15:11.673Z
Modified
2026-03-10T23:19:26.185803Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

flbgzipcompress in flb_gzip.c in Fluent Bit before 1.6.4 has an out-of-bounds write because it does not use the correct calculation of the maximum gzip data-size expansion.

References

Affected packages

Git / github.com/fluent/fluent-bit

Affected ranges

Type
GIT
Repo
https://github.com/fluent/fluent-bit
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
626b22f1dff69c155a2d84df7625c58b78881eeb
Fixed
cadff53c093210404aed01c4cf586adb8caa07af
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.6.4"
        }
    ]
}

Affected versions

0.*
0.13-dev-0.10
0.13-dev-0.11
0.13-dev-0.12
0.13-dev-0.13
0.13-dev-0.14
0.13-dev-0.15
0.13-dev-0.16
0.13-dev-0.17
0.13-dev-0.18
0.13-dev-0.4
0.13-dev-0.5
0.13-dev-0.6
0.13-dev-0.7
0.13-dev-0.8
0.13-dev-0.9
v0.*
v0.10.0
v0.11.0
v0.12.0
v0.12.1
v0.12.2
v0.12.3
v0.12.4
v0.13.0
v0.14.0
v0.3
v0.4
v0.5
v0.5.1
v0.6.0
v0.7.0
v0.8.0
v0.8.1
v0.8.2
v0.9.0
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.4.0
v1.5.0
v1.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35963.json"
vanir_signatures 
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        },
        "source": "https://github.com/fluent/fluent-bit/commit/626b22f1dff69c155a2d84df7625c58b78881eeb",
        "signature_type": "Function",
        "id": "CVE-2020-35963-2595e37e",
        "target": {
            "file": "tests/internal/aws_credentials_sts.c",
            "function": "test_sts_provider_api_error"
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        "signature_type": "Function",
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        "signature_type": "Function",
        "id": "CVE-2020-35963-4815c013",
        "target": {
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            "function": "test_sts_provider_unexpected_api_response"
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        "signature_type": "Line",
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        "signature_type": "Function",
        "id": "CVE-2020-35963-e15cec1a",
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            "function": "flb_gzip_compress"
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    },
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]