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    CVE-2009-0025

    BIND 9.6.0, 9.5.1, 9.5.0, 9.4.3, and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

    Published:Jan 7, 2009
    Last Modified:Apr 23, 2026
    EPS:Jan 7, 2009
    EPSS Score:0.00961
    CVSS Score:6.8

    Affected Products

    Vendor
    Isc
    Product
    Bind
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-12617 (CVSS 7.5) — The issue is unexpected program termination based on ordering and/or specific content in responses to queries …
    CVE-2026-11605 (CVSS 7.5) — The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all …
    CVE-2026-10723 (CVSS 6.8) — BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authentica…
    CVE-2026-10822 (CVSS 6.5) — If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and m…
    CVE-2026-13204 (CVSS 7.5) — If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RR…
    CVE-2026-11331 (CVSS 7.5) — An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names…
    CVE-2026-11622 (CVSS 7.5) — A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer f…
    CVE-2026-11721 (CVSS 7.5) — It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels …
    CVE-2026-13321 (CVSS 8.6) — The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the si…
    CVE-2026-5950 (CVSS 5.3) — An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling,…

    References

    http://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/49ef622c8329fd33
    http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    http://marc.info/?l=bugtraq&m=141879471518471&w=2
    http://secunia.com/advisories/33494
    http://secunia.com/advisories/33546
    http://secunia.com/advisories/33551
    http://secunia.com/advisories/33559
    http://secunia.com/advisories/33683
    http://secunia.com/advisories/33882
    http://secunia.com/advisories/35074
    http://security.freebsd.org/advisories/FreeBSD-SA-09:04.bind.asc
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.540362
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-250846-1
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2009-045.htm
    http://wiki.rpath.com/Advisories:rPSA-2009-0009
    http://www.ocert.org/advisories/ocert-2008-016.html
    http://www.openbsd.org/errata44.html#008_bind
    http://www.securityfocus.com/archive/1/499827/100/0/threaded
    http://www.securityfocus.com/archive/1/500207/100/0/threaded
    http://www.securityfocus.com/archive/1/502322/100/0/threaded
    http://www.securityfocus.com/bid/33151
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vmware.com/security/advisories/VMSA-2009-0004.html
    http://www.vupen.com/english/advisories/2009/0043
    http://www.vupen.com/english/advisories/2009/0366
    http://www.vupen.com/english/advisories/2009/0904
    http://www.vupen.com/english/advisories/2009/1297
    https://issues.rpath.com/browse/RPL-2938
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10879
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5569
    https://www.isc.org/software/bind/advisories/cve-2009-0025
    https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00393.html
    http://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/49ef622c8329fd33
    http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    http://marc.info/?l=bugtraq&m=141879471518471&w=2
    http://secunia.com/advisories/33494
    http://secunia.com/advisories/33546
    http://secunia.com/advisories/33551
    http://secunia.com/advisories/33559
    http://secunia.com/advisories/33683
    http://secunia.com/advisories/33882
    http://secunia.com/advisories/35074
    http://security.freebsd.org/advisories/FreeBSD-SA-09:04.bind.asc
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.540362
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-250846-1
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2009-045.htm
    http://wiki.rpath.com/Advisories:rPSA-2009-0009
    http://www.ocert.org/advisories/ocert-2008-016.html
    http://www.openbsd.org/errata44.html#008_bind
    http://www.securityfocus.com/archive/1/499827/100/0/threaded
    http://www.securityfocus.com/archive/1/500207/100/0/threaded
    http://www.securityfocus.com/archive/1/502322/100/0/threaded
    http://www.securityfocus.com/bid/33151
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vmware.com/security/advisories/VMSA-2009-0004.html
    http://www.vupen.com/english/advisories/2009/0043
    http://www.vupen.com/english/advisories/2009/0366
    http://www.vupen.com/english/advisories/2009/0904
    http://www.vupen.com/english/advisories/2009/1297
    https://issues.rpath.com/browse/RPL-2938
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10879
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5569
    https://www.isc.org/software/bind/advisories/cve-2009-0025
    https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00393.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High