Vulnerability identifier: #VU31837
Vulnerability risk: Low
CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
ISC BIND
Server applications /
DNS servers
Vendor: ISC
Description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The query_findclosestnsec3 function in query.c in named in ISC BIND 9.6, 9.7, and 9.8 before 9.8.6-P2 and 9.9 before 9.9.4-P2, and 9.6-ESV before 9.6-ESV-R10-P2, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a crafted DNS query to an authoritative nameserver that uses the NSEC3 signing feature.
Mitigation
Install update from vendor's website.
Vulnerable software versions
ISC BIND: 9.9.8-P3
External links
https://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html
https://linux.oracle.com/errata/ELSA-2014-1244
https://lists.fedoraproject.org/pipermail/package-announce/2014-January/126761.html
https://lists.fedoraproject.org/pipermail/package-announce/2014-January/126772.html
https://lists.opensuse.org/opensuse-security-announce/2015-03/msg00009.html
https://lists.opensuse.org/opensuse-updates/2014-02/msg00016.html
https://lists.opensuse.org/opensuse-updates/2014-02/msg00019.html
https://marc.info/?l=bugtraq&m=138995561732658&w=2
https://osvdb.org/101973
https://rhn.redhat.com/errata/RHSA-2014-0043.html
https://secunia.com/advisories/56425
https://secunia.com/advisories/56427
https://secunia.com/advisories/56442
https://secunia.com/advisories/56493
https://secunia.com/advisories/56522
https://secunia.com/advisories/56574
https://secunia.com/advisories/56871
https://secunia.com/advisories/61117
https://secunia.com/advisories/61199
https://secunia.com/advisories/61343
https://www.debian.org/security/2014/dsa-3023
https://www.freebsd.org/security/advisories/FreeBSD-SA-14:04.bind.asc
https://www.mandriva.com/security/advisories?name=MDVSA-2014:002
https://www.securityfocus.com/bid/64801
https://www.securitytracker.com/id/1029589
https://www.slackware.com/security/viewer.php?l=slackware-security&y=2014&m=slackware-security.518391
https://www.slackware.com/security/viewer.php?l=slackware-security&y=2014&m=slackware-security.524465
https://www.ubuntu.com/usn/USN-2081-1
https://bugzilla.redhat.com/show_bug.cgi?id=1051717
https://kb.isc.org/article/AA-01078
https://kb.isc.org/article/AA-01085
https://support.apple.com/kb/HT6536
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.