CVE-2020-35471

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-35471
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-35471.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-35471
Aliases
Downstream
Related
Published
2020-12-15T01:15:13Z
Modified
2025-09-19T12:18:13.637013Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Envoy before 1.16.1 mishandles dropped and truncated datagrams, as demonstrated by a segmentation fault for a UDP packet size larger than 1500.

References

Affected packages

Git / github.com/envoyproxy/envoy

Affected ranges

Type
GIT
Repo
https://github.com/envoyproxy/envoy
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0717f49fef0dac3818cd7cdc52bf18e0ae1f7a2c

Affected versions

v1.*

v1.0.0
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.2.0
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.7.0
v1.8.0
v1.9.0

Database specific 

{
    "vanir_signatures": [
        {
            "source": "https://github.com/envoyproxy/envoy/commit/0717f49fef0dac3818cd7cdc52bf18e0ae1f7a2c",
            "signature_version": "v1",
            "id": "CVE-2020-35471-373da623",
            "signature_type": "Line",
            "target": {
                "file": "source/server/connection_handler_impl.cc"
            },
            "digest": {
                "line_hashes": [
                    "131204029759339862986326872176907194143",
                    "8315711033336415069387641955587933397",
                    "180178330427094755049822304876287727863",
                    "154652574641508373041638957818451707934"
                ],
                "threshold": 0.9
            },
            "deprecated": false
        },
        {
            "source": "https://github.com/envoyproxy/envoy/commit/0717f49fef0dac3818cd7cdc52bf18e0ae1f7a2c",
            "signature_version": "v1",
            "id": "CVE-2020-35471-4471e0c5",
            "signature_type": "Line",
            "target": {
                "file": "test/integration/proxy_proto_integration_test.h"
            },
            "digest": {
                "line_hashes": [
                    "304832360493619245575785821857941230522",
                    "58072314304350740758434783398840774936",
                    "253066578701505843595586025947161622852",
                    "143395993664261232895963008373531278921",
                    "90535865904670140656649989927407341081",
                    "30695165069688148553736720927527606474",
                    "273542442853495813808105517980188796478",
                    "44454462798017145680154333844542751925",
                    "98738407283226628477786289393006431257",
                    "112043481163063748425909700695669389018",
                    "156095165858063837556317049279107360653",
                    "260460737136737242659349249103925760821",
                    "324980028845647638019925282319855723158",
                    "287840385617234031781812252431680592404",
                    "215831503921888146377477691678125399780"
                ],
                "threshold": 0.9
            },
            "deprecated": false
        },
        {
            "source": "https://github.com/envoyproxy/envoy/commit/0717f49fef0dac3818cd7cdc52bf18e0ae1f7a2c",
            "signature_version": "v1",
            "id": "CVE-2020-35471-5bd07ec1",
            "signature_type": "Line",
            "target": {
                "file": "test/integration/proxy_proto_integration_test.cc"
            },
            "digest": {
                "line_hashes": [
                    "317158422460062390569541586553340651141",
                    "188545860483965097382454808649672515013",
                    "87136608404409369736246237155290488473",
                    "29667346942229151296377789069746541136",
                    "173345536128078706522041138752856204893",
                    "262294055421710382396638433211288245350",
                    "317163328929627490087814819905050249142"
                ],
                "threshold": 0.9
            },
            "deprecated": false
        },
        {
            "source": "https://github.com/envoyproxy/envoy/commit/0717f49fef0dac3818cd7cdc52bf18e0ae1f7a2c",
            "signature_version": "v1",
            "id": "CVE-2020-35471-64c1d30b",
            "signature_type": "Function",
            "target": {
                "file": "test/integration/proxy_proto_integration_test.h",
                "function": "ProxyProtoIntegrationTest"
            },
            "digest": {
                "function_hash": "185610297851602743970956302374790945869",
                "length": 607.0
            },
            "deprecated": false
        }
    ]
}