GLSA 200903-14: BIND: Incorrect signature verification
| Severity: | normal |
| Title: | BIND: Incorrect signature verification |
| Date: | 03/09/2009 |
| Bugs: | , |
| ID: | 200903-14 |
Synopsis
Incomplete verification of RSA and DSA certificates might lead to spoofed records authenticated using DNSSEC.Background
ISC BIND is the Internet Systems Consortium implementation of the Domain Name System (DNS) protocol.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-dns/bind | < 9.4.3_p1 | >= 9.4.3_p1 | All supported architectures |
Description
BIND does not properly check the return value from the OpenSSL functions to verify DSA (CVE-2009-0025) and RSA (CVE-2009-0265) certificates.
Impact
A remote attacker could bypass validation of the certificate chain to spoof DNSSEC-authenticated records.
Workaround
There is no known workaround at this time.
Resolution
All BIND users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.4.3_p1"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.