CVE-2020-11612

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Source
https://cve.org/CVERecord?id=CVE-2020-11612
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11612.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-11612
Aliases
Downstream
Related
Published
2020-04-07T18:15:13.697Z
Modified
2026-03-15T22:33:14.620431Z
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

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

References

Affected packages

Git / github.com/netty/netty

Affected ranges

Type
GIT
Repo
https://github.com/netty/netty
Events
Introduced
446b38db5220a3934064ee4e26f40d81dfa6b714
Fixed
ebe7af510228f9c6b7f1aff4725ceac85f1e9cc3
Database specific 
{
    "versions": [
        {
            "introduced": "4.1"
        },
        {
            "fixed": "4.1.46"
        }
    ]
}

Affected versions

netty-4.*
netty-4.1.0.Final
netty-4.1.1.Final
netty-4.1.10.Final
netty-4.1.11.Final
netty-4.1.12.Final
netty-4.1.13.Final
netty-4.1.14.Final
netty-4.1.15.Final
netty-4.1.16.Final
netty-4.1.17.Final
netty-4.1.18.Final
netty-4.1.19.Final
netty-4.1.2.Final
netty-4.1.20.Final
netty-4.1.21.Final
netty-4.1.22.Final
netty-4.1.23.Final
netty-4.1.24.Final
netty-4.1.25.Final
netty-4.1.26.Final
netty-4.1.27.Final
netty-4.1.28.Final
netty-4.1.29.Final
netty-4.1.3.Final
netty-4.1.30.Final
netty-4.1.31.Final
netty-4.1.32.Final
netty-4.1.33.Final
netty-4.1.34.Final
netty-4.1.35.Final
netty-4.1.36.Final
netty-4.1.37.Final
netty-4.1.38.Final
netty-4.1.39.Final
netty-4.1.4.Final
netty-4.1.40.Final
netty-4.1.41.Final
netty-4.1.42.Final
netty-4.1.43.Final
netty-4.1.44.Final
netty-4.1.45.Final
netty-4.1.5.Final
netty-4.1.6.Final
netty-4.1.7.Final
netty-4.1.8.Final
netty-4.1.9.Final

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "33"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.0.0.3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.5.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "7.4.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "20.3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "21.5"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.2.1.3.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.2.1.4.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.1"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11612.json"