Description
The RFC 5011 implementation in rdata.c in ISC BIND 9.7.x and 9.8.x before 9.8.5-P2, 9.8.6b1, 9.9.x before 9.9.3-P2, and 9.9.4b1, and DNSco BIND 9.9.3-S1 before 9.9.3-S1-P1 and 9.9.4-S1b1, allows remote attackers to cause a denial of service (assertion failure and named daemon exit) via a query with a malformed RDATA section that is not properly handled during construction of a log message, as exploited in the wild in July 2013.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bind9 | 1:9.8.4.dfsg.P1-6+nmu3 | — |
| Debian 13 | bind9 | 1:9.8.4.dfsg.P1-6+nmu3 | — |
| Debian 12 | bind9 | 1:9.8.4.dfsg.P1-6+nmu3 | — |
| Debian 7 | bind9 | 1:9.8.4.dfsg.P1-6+nmu2+deb7u1 | DSA-2728-1 |
| Debian 6.0 | bind9 | 1:9.7.3.dfsg-1~squeeze11 | DSA-2728-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | bind +5 | 32:9.8.2-0.17.rc1.el6_4.5 | RHSA-2013:1114 |
| RHEL 5 | bind97 +4 | 32:9.7.0-17.P2.el5_9.2 | RHSA-2013:1115 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bind | 9.10.3P4-21.1 | openSUSE-SU-2024:10467-1 |
Advisories 5
- RHSA-2013:1114 Red Hat Security Advisory: bind security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-2728-1 bind9 - denial of service Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10467-1 bind-9.10.3P4-21.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2013:1115 Red Hat Security Advisory: bind97 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2025-1176 Internet Systems Consortium BIND: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 29, 2025
References
- FEDORA-2013-13863 vendor-advisory
- HPSBUX02926 vendor-advisory
- https://kb.isc.org/article/AA-01015
- APPLE-SA-2014-10-16-3 vendor-advisory
- 54134 third-party-advisory
- MDVSA-2013:202 vendor-advisory
- http://linux.oracle.com/errata/ELSA-2014-1244
- 54185 third-party-advisory
- FreeBSD-SA-13:07 vendor-advisory
- https://kb.isc.org/article/AA-01016
- oval:org.mitre.oval:def:19561 vdb-entry signature
- https://kc.mcafee.com/corporate/index?page=content&id=SB10052
- FEDORA-2013-13831 vendor-advisory
- 54207 third-party-advisory
- openSUSE-SU-2013:1354 vendor-advisory
- https://support.apple.com/kb/HT6536
- isc-bind-cve20134854-dos(86004) vdb-entry
- http://www.zerodayinitiative.com/advisories/ZDI-13-210/
- 20130806 [slackware-security] bind (SSA:2013-218-01) mailing-list
- RHSA-2013:1114 vendor-advisory
- 61479 vdb-entry
- 54323 third-party-advisory
- SUSE-SU-2013:1310 vendor-advisory
- 54211 third-party-advisory
- USN-1910-1 vendor-advisory
- DSA-2728 vendor-advisory
- 1028838 vdb-entry
- RHSA-2013:1115 vendor-advisory
- 54432 third-party-advisory