CVE-2020-13817

Source
https://cve.org/CVERecord?id=CVE-2020-13817
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13817.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-13817
Downstream
Related
Published
2020-06-04T13:15:11.053Z
Modified
2026-03-13T00:22:21.753705Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
[none]
Details

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.

References

Affected packages

Git /

Affected ranges

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13817.json"
unresolved_ranges
[
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                "introduced": "0"
            },
            {
                "fixed": "4.2.8"
            }
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    {
        "events": [
            {
                "introduced": "4.3.0"
            },
            {
                "fixed": "4.3.100"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "4.2.8-NA"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "4.2.8-p1"
            }
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    },
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            {
                "last_affected": "4.2.8-p1\\-beta1"
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        ]
    },
    {
        "events": [
            {
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            {
                "last_affected": "4.2.8-p1\\-beta2"
            }
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    {
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            {
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            },
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            }
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            {
                "last_affected": "4.2.8-p1\\-beta4"
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            {
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            {
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            {
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]