CVE-2021-23017
high · 7.7A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
7.7
CVSS
53.5%
EPSS (exploit prob.)
99th
EPSS percentile
2021-06-01
Published
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Weaknesses
CWE-193
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| f5 | nginx | >= 0.6.18, < 1.20.1 |
| openresty | openresty | < 1.19.3.2 |
| fedoraproject | fedora | 33 |
| fedoraproject | fedora | 34 |
| netapp | ontap_select_deploy_administration_utility | all versions |
| oracle | blockchain_platform | < 21.1.2 |
| oracle | communications_control_plane_monitor | 3.4 |
| oracle | communications_control_plane_monitor | 4.2 |
| oracle | communications_control_plane_monitor | 4.3 |
| oracle | communications_control_plane_monitor | 4.4 |
| oracle | communications_fraud_monitor | >= 3.4, <= 4.4 |
| oracle | communications_operations_monitor | 3.4 |
| oracle | communications_operations_monitor | 4.2 |
| oracle | communications_operations_monitor | 4.3 |
| oracle | communications_operations_monitor | 4.4 |
| oracle | communications_session_border_controller | 8.4 |
| oracle | communications_session_border_controller | 9.0 |
| oracle | enterprise_communications_broker | 3.3.0 |
| oracle | enterprise_session_border_controller | 8.4 |
| oracle | enterprise_session_border_controller | 9.0 |
| oracle | enterprise_telephony_fraud_monitor | 3.4 |
| oracle | enterprise_telephony_fraud_monitor | 4.2 |
| oracle | enterprise_telephony_fraud_monitor | 4.3 |
| oracle | enterprise_telephony_fraud_monitor | 4.4 |
| oracle | goldengate | < 21.4.0.0.0 |
Check a specific version with /api/v1/cve/match.
References
- http://mailman.nginx.org/pipermail/nginx-announce/2021/000300.html
- http://packetstormsecurity.com/files/167720/Nginx-1.20.0-Denial-Of-Service.html
- https://lists.apache.org/thread.html/r37e6b2165f7c910d8e15fd54f4697857619ad2625f56583802004009%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r4d4966221ca399ce948ef34884652265729d7d9ef8179c78d7f17e7f%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r6fc5c57b38e93e36213e9a18c8a4e5dbd5ced1c7e57f08a1735975ba%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/rf232eecd47fdc44520192810560303073cefd684b321f85e311bad31%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/rf318aeeb4d7a3a312734780b47de83cefb7e6995da0b2cae5c28675c%40%3Cnotifications.apisix.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7SFVYHC7OXTEO4SMBWXDVK6E5IMEYMEE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNKOP2JR5L7KCIZTJRZDCUPJTUONMC5I/
- https://security.netapp.com/advisory/ntap-20210708-0006/
- https://support.f5.com/csp/article/K12331123%2C
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- http://mailman.nginx.org/pipermail/nginx-announce/2021/000300.html
- http://packetstormsecurity.com/files/167720/Nginx-1.20.0-Denial-Of-Service.html
- https://lists.apache.org/thread.html/r37e6b2165f7c910d8e15fd54f4697857619ad2625f56583802004009%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r4d4966221ca399ce948ef34884652265729d7d9ef8179c78d7f17e7f%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/r6fc5c57b38e93e36213e9a18c8a4e5dbd5ced1c7e57f08a1735975ba%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/rf232eecd47fdc44520192810560303073cefd684b321f85e311bad31%40%3Cnotifications.apisix.apache.org%3E
- https://lists.apache.org/thread.html/rf318aeeb4d7a3a312734780b47de83cefb7e6995da0b2cae5c28675c%40%3Cnotifications.apisix.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7SFVYHC7OXTEO4SMBWXDVK6E5IMEYMEE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNKOP2JR5L7KCIZTJRZDCUPJTUONMC5I/
- https://security.netapp.com/advisory/ntap-20210708-0006/
- https://support.f5.com/csp/article/K12331123%2C
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-23017