CVE-2021-3520

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.

References

Affected packages

Git / github.com/lz4/lz4

Affected ranges

Type

GIT

Repo

https://github.com/lz4/lz4

Events

Introduced

641b453d9db536ee020851bfcb1dc39f61006f0a

Fixed

5ff839680134437dbf4678f3d0c7b371d84f4964

Database specific

{
    "versions": [
        {
            "introduced": "1.8.3"
        },
        {
            "fixed": "1.9.4"
        }
    ]
}

Affected versions

v1.*

v1.8.3

v1.9.0

v1.9.1

v1.9.2

v1.9.3

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3520.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.14.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.8"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "8.2.0"
            },
            {
                "fixed": "8.2.12"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "9.0.0"
            },
            {
                "fixed": "9.0.6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.1.0"
            }
        ]
    }
]