CVE-2021-22945

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Source
https://cve.org/CVERecord?id=CVE-2021-22945
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-22945.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-22945
Aliases
Downstream
Related
Published
2021-09-23T13:15:08.690Z
Modified
2026-03-20T11:39:59.416654Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it again.

References

Affected packages

Git / github.com/curl/curl

Affected ranges

Type
GIT
Repo
https://github.com/curl/curl
Events
Introduced
315ee3fe75dade912b48a21ceec9ccda0230d937
Last affected
bfbde883af33397943df68a3ae01847a634d33bf
Database specific 
{
    "versions": [
        {
            "introduced": "7.73.0"
        },
        {
            "last_affected": "7.78.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/mysql/mysql-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
89713bf41c33528c3e7682d219dc838915f5af9a
Introduced
270fd3411e3d671a73ed9725940a30080f59ce6d
Last affected
beb865a960b9a8a16cf999c323e46c5b0c67f21f
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
61a3a1d8ef15512396b4c2af46e922a19bf2b174
Database specific 
{
    "versions": [
        {
            "introduced": "5.7.0"
        },
        {
            "last_affected": "5.7.35"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "last_affected": "8.0.26"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "9.1.0"
        }
    ]
}

Affected versions

Other
curl-7_73_0
curl-7_74_0
curl-7_75_0
curl-7_76_0
curl-7_76_1
curl-7_77_0
curl-7_78_0
mysql-5.*
mysql-5.5.52
mysql-5.5.53
mysql-5.5.54
mysql-5.5.55
mysql-5.5.56
mysql-5.5.57
mysql-5.5.58
mysql-5.5.59
mysql-5.5.60
mysql-5.5.61
mysql-5.5.62
mysql-5.5.63
mysql-5.6.33
mysql-5.6.34
mysql-5.6.35
mysql-5.6.36
mysql-5.6.37
mysql-5.6.38
mysql-5.6.39
mysql-5.6.40
mysql-5.6.41
mysql-5.6.42
mysql-5.6.43
mysql-5.6.45
mysql-5.6.46
mysql-5.6.47
mysql-5.6.48
mysql-5.6.49
mysql-5.6.50
mysql-5.6.51
mysql-5.7.15
mysql-5.7.16
mysql-5.7.17
mysql-5.7.18
mysql-5.7.19
mysql-5.7.20
mysql-5.7.21
mysql-5.7.22
mysql-5.7.24
mysql-5.7.25
mysql-5.7.26
mysql-5.7.27
mysql-5.7.28
mysql-5.7.29
mysql-5.7.30
mysql-5.7.31
mysql-5.7.32
mysql-5.7.33
mysql-5.7.34
mysql-5.7.35
mysql-8.*
mysql-8.0.0

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "33"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "35"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "12.0.0"
            },
            {
                "fixed": "12.3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "1.0.1.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "11.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "8.2.0"
            },
            {
                "fixed": "8.2.12"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "9.0.0"
            },
            {
                "fixed": "9.0.6"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-22945.json"