CVE-2020-8623

A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c

Published Aug 21, 2020 CVSS 3.1 · 7.5 High EPSS 6.6% KEV · Not listed
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

Remediation

Vendor Solution

Upgrade to the patched release most closely related to your current version of BIND: BIND 9.11.22 BIND 9.16.6 BIND 9.17.4 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. BIND 9.11.22-S1


Vendor Workaround

No workarounds known.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2355-1 bind9 security update
Debian DSA Debian DSA DSA-4752-1 bind9 security update
EUVD EUVD EUVD-2020-29471 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
Ubuntu USN Ubuntu USN USN-4468-1 Bind vulnerabilities
History

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