CVE-2021-20231

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Source
https://cve.org/CVERecord?id=CVE-2021-20231
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20231.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-20231
Downstream
Related
Published
2021-03-12T19:15:13.037Z
Modified
2026-03-15T22:38:50.419263Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.

References

Affected packages

Git / github.com/gnutls/gnutls

Affected ranges

Type
GIT
Repo
https://github.com/gnutls/gnutls
Events
Introduced
c87f22eec1b412aaafa873ff81b02f52532bfa79
Fixed
3aa1c455cc2fd7f63a0ee6fd90791b46bf06eb79
Database specific 
{
    "versions": [
        {
            "introduced": "3.6.3"
        },
        {
            "fixed": "3.7.1"
        }
    ]
}

Affected versions

3.*
3.6.12
3.6.13
3.6.14
3.7.0
Other
gnutls_3_6_10
gnutls_3_6_11
gnutls_3_6_11_1
gnutls_3_6_12
gnutls_3_6_3
gnutls_3_6_4
gnutls_3_6_5
gnutls_3_6_6
gnutls_3_6_7
gnutls_3_6_9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20231.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    }
]