CVE-2023-4236

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Source
https://cve.org/CVERecord?id=CVE-2023-4236
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4236.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-4236
Downstream
Related
Published
2023-09-20T13:15:12.313Z
Modified
2026-04-16T00:03:13.505807128Z
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

A flaw in the networking code handling DNS-over-TLS queries may cause named to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load. This issue affects BIND 9 versions 9.18.0 through 9.18.18 and 9.18.11-S1 through 9.18.18-S1.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "9.18.11-s1"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:a:isc:bind:9.18.18:s1:*:*:supported_preview:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "9.18.18-s1"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "10.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "11.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "37"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "38"
                }
            ],
            "cpe": "cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "39"
                }
            ]
        }
    ]
}
References

Affected packages

Git / gitlab.isc.org/isc-projects/bind9

Affected ranges

Type
GIT
Repo
https://gitlab.isc.org/isc-projects/bind9
Events
Introduced
8db45afa1affcb823e68afdeddedf93e136f5d3e
Fixed
1f8de2f0aa6a47e299fbd8e66921fbcb4c5f64dc
Database specific 
{
    "source": "CPE_FIELD",
    "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.18.0"
        },
        {
            "fixed": "9.18.18"
        }
    ]
}

Affected versions

v9.*
v9.18.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4236.json"