CVE-2021-3449

Source
https://cve.org/CVERecord?id=CVE-2021-3449
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3449.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-3449
Aliases
Downstream
Related
Published
2021-03-25T15:15:13.450Z
Modified
2026-04-16T04:38:02.648461387Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signaturealgorithms extension (where it was present in the initial ClientHello), but includes a signaturealgorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

References

Affected packages

Git / github.com/graalvm/graalvm-ce-builds

Affected ranges

Type
GIT
Repo
https://github.com/graalvm/graalvm-ce-builds
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "19.3.5"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "20.3.1.2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "21.0.0.2"
        }
    ]
}
Type
GIT
Repo
https://github.com/mysql/mysql-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "a9.4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "8.0.23"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.7.33"
        },
        {
            "introduced": "8.0.15"
        },
        {
            "last_affected": "8.0.23"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "8.0.23"
        }
    ]
}
Type
GIT
Repo
https://github.com/nodejs/node
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
Last affected
Introduced
Last affected
Introduced
Last affected
Introduced
Fixed
Introduced
Last affected
Introduced
Fixed
Introduced
Fixed
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "12.2-NA"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.11.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.11.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.12.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "21.2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "20.12"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "5.6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "8.8"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.4"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.4"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.4"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.4"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "6.4"
        },
        {
            "introduced": "2.0"
        },
        {
            "fixed": "2.2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "14.0-NA"
        },
        {
            "introduced": "10.0.0"
        },
        {
            "last_affected": "10.12.0"
        },
        {
            "introduced": "10.13.0"
        },
        {
            "last_affected": "10.24.0"
        },
        {
            "introduced": "12.0.0"
        },
        {
            "last_affected": "12.12.0"
        },
        {
            "introduced": "12.13.0"
        },
        {
            "fixed": "12.22.1"
        },
        {
            "introduced": "14.0.0"
        },
        {
            "last_affected": "14.14.0"
        },
        {
            "introduced": "14.15.0"
        },
        {
            "fixed": "14.16.1"
        },
        {
            "introduced": "15.0.0"
        },
        {
            "fixed": "15.14.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/openssl/openssl
Events
Introduced
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Database specific
{
    "versions": [
        {
            "introduced": "1.1.1"
        },
        {
            "fixed": "1.1.1k"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.5"
        },
        {
            "introduced": "2.2"
        },
        {
            "fixed": "3.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.0-NA"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.0-sp1"
        }
    ]
}

Affected versions

3.*
3.5-PRE-CLANG-FORMAT-WEBKIT
Other
BEFORE_engine
BEN_FIPS_TEST_7
BEN_FIPS_TEST_8
FIPS_TEST_10
FIPS_TEST_9
OpenSSL_0_9_1c
OpenSSL_0_9_2b
OpenSSL_0_9_3
OpenSSL_0_9_3a
OpenSSL_0_9_3beta2
OpenSSL_0_9_4
OpenSSL_0_9_5a
OpenSSL_0_9_5a-beta1
OpenSSL_0_9_5a-beta2
OpenSSL_0_9_5beta1
OpenSSL_0_9_5beta2
OpenSSL_0_9_6-beta3
OpenSSL_0_9_7
OpenSSL_0_9_7-beta1
OpenSSL_0_9_7-beta2
OpenSSL_0_9_7-beta3
OpenSSL_0_9_7-beta4
OpenSSL_0_9_7-beta6
OpenSSL_0_9_7a
OpenSSL_0_9_7b
OpenSSL_0_9_7c
OpenSSL_0_9_7e
OpenSSL_0_9_7f
OpenSSL_0_9_7g
OpenSSL_0_9_7h
OpenSSL_0_9_7i
OpenSSL_1_0_1
OpenSSL_1_0_1-beta1
OpenSSL_1_0_1-beta2
OpenSSL_1_0_1-beta3
OpenSSL_1_0_1-post-auto-reformat
OpenSSL_1_0_1-post-reformat
OpenSSL_1_0_1-pre-auto-reformat
OpenSSL_1_0_1-pre-reformat
OpenSSL_1_0_1a
OpenSSL_1_0_1b
OpenSSL_1_0_1c
OpenSSL_1_0_1d
OpenSSL_1_0_1e
OpenSSL_1_0_1f
OpenSSL_1_0_1g
OpenSSL_1_0_1h
OpenSSL_1_0_1i
OpenSSL_1_0_1j
OpenSSL_1_0_1k
OpenSSL_1_0_1l
OpenSSL_1_0_1m
OpenSSL_1_0_1n
OpenSSL_1_0_1o
OpenSSL_1_0_1p
OpenSSL_1_0_1q
OpenSSL_1_0_1r
OpenSSL_1_0_1s
OpenSSL_1_0_1t
OpenSSL_1_0_1u
OpenSSL_1_1_0-pre1
OpenSSL_1_1_0-pre2
OpenSSL_1_1_0-pre3
OpenSSL_1_1_0-pre4
OpenSSL_1_1_0-pre5
OpenSSL_1_1_0-pre6
OpenSSL_1_1_1
OpenSSL_1_1_1-pre1
OpenSSL_1_1_1-pre2
OpenSSL_1_1_1-pre3
OpenSSL_1_1_1-pre4
OpenSSL_1_1_1-pre5
OpenSSL_1_1_1-pre6
OpenSSL_1_1_1-pre7
OpenSSL_1_1_1-pre8
OpenSSL_1_1_1-pre9
OpenSSL_1_1_1a
OpenSSL_1_1_1b
OpenSSL_1_1_1c
OpenSSL_1_1_1d
OpenSSL_1_1_1e
OpenSSL_1_1_1f
OpenSSL_1_1_1g
OpenSSL_1_1_1h
OpenSSL_1_1_1i
OpenSSL_1_1_1j
OpenSSL_1_1_1k
OpenSSL_1_1_1l
OpenSSL_1_1_1m
OpenSSL_1_1_1n
OpenSSL_1_1_1o
OpenSSL_1_1_1p
OpenSSL_1_1_1q
OpenSSL_1_1_1r
OpenSSL_1_1_1s
OpenSSL_1_1_1t
OpenSSL_1_1_1u
OpenSSL_1_1_1v
OpenSSL_FIPS_1_0
master-post-auto-reformat
master-post-reformat
master-pre-auto-reformat
master-pre-reformat
mysql-3.*
mysql-3.23.22-beta
mysql-3.23.28-gamma
mysql-3.23.30-gamma
mysql-3.23.31
mysql-3.23.32
mysql-3.23.33
mysql-3.23.36
mysql-4.*
mysql-4.0.2
mysql-4.0.4
mysql-5.*
mysql-5.1.4
mysql-5.7.31
mysql-5.7.32
mysql-5.7.33
mysql-8.*
mysql-8.0.23
mysql-9.*
mysql-9.0.0
mysql-9.0.0-release
mysql-9.4.0
mysql-cluster-8.*
mysql-cluster-8.0.23
mysql-cluster-9.*
mysql-cluster-9.0.0
mysql-cluster-9.4.0
openssl-3.*
openssl-3.0.0
openssl-3.0.0-alpha1
openssl-3.0.0-alpha10
openssl-3.0.0-alpha11
openssl-3.0.0-alpha12
openssl-3.0.0-alpha13
openssl-3.0.0-alpha14
openssl-3.0.0-alpha15
openssl-3.0.0-alpha16
openssl-3.0.0-alpha17
openssl-3.0.0-alpha2
openssl-3.0.0-alpha3
openssl-3.0.0-alpha4
openssl-3.0.0-alpha5
openssl-3.0.0-alpha6
openssl-3.0.0-alpha7
openssl-3.0.0-alpha8
openssl-3.0.0-alpha9
openssl-3.0.0-beta1
openssl-3.0.0-beta2
openssl-3.0.1
openssl-3.0.10
openssl-3.0.11
openssl-3.0.12
openssl-3.0.13
openssl-3.0.14
openssl-3.0.15
openssl-3.0.16
openssl-3.0.17
openssl-3.0.18
openssl-3.0.2
openssl-3.0.3
openssl-3.0.4
openssl-3.0.5
openssl-3.0.6
openssl-3.0.7
openssl-3.0.8
openssl-3.0.9
openssl-3.2.0-alpha1
openssl-3.2.0-alpha2
openssl-3.4.0-alpha1
openssl-3.5.0
openssl-3.5.0-alpha1
openssl-3.5.0-beta1
openssl-3.5.1
openssl-3.5.2
openssl-3.5.3
openssl-3.5.4
v10.*
v10.0.0
v10.1.0
v10.10.0
v10.11.0
v10.12.0
v10.13.0
v10.14.0
v10.14.1
v10.14.2
v10.15.0
v10.15.1
v10.15.2
v10.15.3
v10.16.0
v10.16.1
v10.16.2
v10.16.3
v10.17.0
v10.18.0
v10.18.1
v10.19.0
v10.2.0
v10.2.1
v10.20.0
v10.20.1
v10.21.0
v10.22.0
v10.22.1
v10.23.0
v10.23.1
v10.23.2
v10.23.3
v10.24.0
v10.3.0
v10.4.0
v10.4.1
v10.5.0
v10.6.0
v10.7.0
v10.8.0
v10.9.0
v12.*
v12.0.0
v12.1.0
v12.10.0
v12.11.0
v12.11.1
v12.12.0
v12.13.0
v12.13.1
v12.14.0
v12.14.1
v12.15.0
v12.16.0
v12.16.1
v12.16.2
v12.16.3
v12.17.0
v12.18.0
v12.18.1
v12.18.2
v12.18.3
v12.18.4
v12.19.0
v12.19.1
v12.2.0
v12.20.0
v12.20.1
v12.20.2
v12.21.0
v12.22.0
v12.3.0
v12.3.1
v12.4.0
v12.5.0
v12.6.0
v12.7.0
v12.8.0
v12.8.1
v12.9.0
v12.9.1
v14.*
v14.0.0
v14.1.0
v14.10.0
v14.10.1
v14.11.0
v14.12.0
v14.13.0
v14.13.1
v14.14.0
v14.15.0
v14.15.1
v14.15.2
v14.15.3
v14.15.4
v14.15.5
v14.16.0
v14.2.0
v14.3.0
v14.4.0
v14.5.0
v14.6.0
v14.7.0
v14.8.0
v14.9.0
v15.*
v15.0.0
v15.0.1
v15.1.0
v15.10.0
v15.11.0
v15.12.0
v15.13.0
v15.2.0
v15.2.1
v15.3.0
v15.4.0
v15.5.0
v15.5.1
v15.6.0
v15.7.0
v15.8.0
v15.9.0
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.1.0
v2.2.0
v2.2.1
v2.3.0
v2.3.1
v2.3.2
v2.3.3
v2.3.4
v2.4.0
v2.5.0
v20.*
v20.0.0
v20.1.0
v20.10.0
v20.11.0
v20.11.1
v20.12.0
v20.2.0
v20.3.0
v20.3.1
v20.4.0
v20.5.0
v20.5.1
v20.6.0
v20.6.1
v20.7.0
v20.8.0
v20.8.1
v20.9.0
v21.*
v21.0.0
v21.1.0
v21.2.0
v3.*
v3.0.0
v4.*
v4.0.0
v4.1.0
v4.1.1
v4.1.2
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.2.6
v5.*
v5.0.0
v5.1.0
v5.1.1
v5.10.0
v5.10.1
v5.11.0
v5.11.1
v5.12.0
v5.2.0
v5.3.0
v5.4.0
v5.4.1
v5.5.0
v5.6.0
v5.7.0
v5.7.1
v5.8.0
v5.9.0
v5.9.1
v6.*
v6.0.0
v6.1.0
v6.2.0
v6.2.1
v6.2.2
v6.3.0
v6.3.1
v8.*
v8.0.0
v8.1.0
v8.1.1
v8.1.2
v8.1.3
v8.1.4
v8.2.0
v8.2.1
v8.3.0
v8.4.0
v8.5.0
v8.6.0
v8.7.0
v8.8.0
vm-19.*
vm-19.3.2
vm-19.3.2-pre
vm-19.3.3
vm-19.3.4
vm-19.3.5
vm-20.*
vm-20.0.1
vm-20.1.0
vm-20.2.0
vm-20.3.0
vm-20.3.1
vm-20.3.1.2
vm-21.*
vm-21.0.0
vm-21.0.0.2

Database specific

vanir_signatures
[
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "28170854778703993674264004058177114599",
                "73132526844288570625317440636111911761",
                "177405411499435185068645597737938634778",
                "224809958623850711330610094965797758930",
                "295554444428855106393106961197201359586"
            ]
        },
        "target": {
            "file": "include/openssl/opensslv.h"
        },
        "deprecated": false,
        "id": "CVE-2021-3449-c377fa22",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/openssl/openssl/commit/e04bd3433fd84e1861bf258ea37928d9845e6a86"
    }
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3449.json"
vanir_signatures_modified
"2026-04-11T17:26:06Z"
unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.2-p1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.2-p2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "6.0.9"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.13.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.12.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.13.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.13.0"
            },
            {
                "last_affected": "5.17.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.2.19"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.2.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.1.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.2.19"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.2.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.1.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "r80.40"
            }
        ]
    },
    {
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