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Message-ID: <aPj2effljuW4V1rA@larwa.hq.kempniu.pl>
Date: Wed, 22 Oct 2025 17:21:29 +0200
From: Michał Kępień <michal@....org>
To: oss-security@...ts.openwall.com
Cc: security-officer@....org
Subject: ISC has disclosed three vulnerabilities in BIND 9 (CVE-2025-8677,
CVE-2025-40778, CVE-2025-40780)
On 22 October 2025 we (Internet Systems Consortium) disclosed three vulnerabilities affecting our BIND 9 software:
- CVE-2025-8677: Resource exhaustion via malformed DNSKEY handling https://kb.isc.org/docs/cve-2025-8677
- CVE-2025-40778: Cache poisoning attacks with unsolicited RRs https://kb.isc.org/docs/cve-2025-40778
- CVE-2025-40780: Cache poisoning due to weak PRNG https://kb.isc.org/docs/cve-2025-40780
New versions of BIND 9 are available from https://www.isc.org/downloads
Operators and package maintainers who prefer to apply patches selectively can find individual vulnerability-specific patches in the "patches" subdirectory of each published release directory:
- https://downloads.isc.org/isc/bind9/9.18.41/patches/
- https://downloads.isc.org/isc/bind9/9.20.15/patches/
- https://downloads.isc.org/isc/bind9/9.21.14/patches/
With the public announcement of these vulnerabilities, the embargo period is ended and any updated software packages that have been prepared may be released.
--
Best regards,
Michał Kępień
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