Vulnerability CVE-2020-8623
Published: 2020-08-21

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

Type:

CWE-269

 (Improper Privilege Management)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
ISC -> BIND 
Fedoraproject -> Fedora 

 References:
https://kb.isc.org/docs/cve-2020-8623
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/
https://security.netapp.com/advisory/ntap-20200827-0003/
https://usn.ubuntu.com/4468-1/
https://www.debian.org/security/2020/dsa-4752
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