libdns in ISC BIND 9.10.0 before P2 does not properly handle EDNS options, which allows remote attackers to cause a denial of service (REQU…

published 2014-06-13 12y ago modified 2026-06-17 4mo ago also EUVD-2014-3796

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 7.0%; EPSS 7.0% chance of exploitation in 30 days, percentile 94%
public exploits: 0; none known

libdns in ISC BIND 9.10.0 before P2 does not properly handle EDNS options, which allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via a crafted packet, as demonstrated by an attack against named, dig, or delv.

Patch / fix

distros 1

bind openSUSE Tumbleweed 9.10.3P4-21.1

opensuse advisories openSUSE-SU-2024:10467-1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-3859 updated 2026-11-04 cvss 5.0

bind: assertion failure during EDNS option processing

Red Hat Enterprise Linux 5 bind, bind97 Red Hat Enterprise Linux 6 bind, bind-sdb, bind-libs, bind-utils, bind-chroot Red Hat Enterprise Linux 7 bind, bind-sdb, bind-libs, bind-utils, bind-chroot, bind-pkcs11, +6 more
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.98% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

CWE-20 Improper Input Validation

References

kb.isc.org /article/AA-01166/
vendor-advisory
securityfocus.com /bid/68193
vdb-entry
kb.isc.org /article/AA-01171/
secunia.com /advisories/58946
third-party-advisory
securitytracker.com /id/1030414
vdb-entry

Sources

CVE List CVE-2014-3859
NVD CVE-2014-3859

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