CVE-2020-8623
High
Description
In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with "--enable-native-pkcs11" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker
SeverityHigh
CVSS7.5
Exploit probability—
Product
Isc Bind
PublishedAug 21, 2020
First seenAug 21, 2020
How to fix
Update
- synology dns_server2.2.2-5027 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/
- usn.ubuntu.com/4468-1/
- debian.org/security/2020/dsa-4752
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/
- security.gentoo.org/glsa/202008-19
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| isc bind | 9.10.0 ≤ v ≤ 9.11.21, 9.12.1 ≤ v ≤ 9.16.5, 9.17.0 ≤ v ≤ 9.17.3, 9.10.5, 9.11.21 | — |
| fedoraproject fedora | 31, 32 | — |
| opensuse leap | 15.1, 15.2 | — |
| debian debian_linux | 9.0, 10.0 | — |
| canonical ubuntu_linux | 16.04, 18.04, 20.04 | — |
| synology dns_server | v < 2.2.2-5027 | 2.2.2-5027 |
| netapp steelstore_cloud_integrated_storage | No range specified | — |
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