CVE-2013-4854: Fedoraproject Fedora

High severity, CVSS 7.8. EPSS: 34.2% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject Fedora: version 18 only; version 19 only
• Freebsd Freebsd: version 8.0 only; version 8.1 only; version 8.2 only; version 8.3 only; version 8.4 only; version 9.0 only; …
• HP HP-Ux: version b.11.31 only
• ISC BIND: version 9.7.0 only; version 9.7.1 only; version 9.7.2 only; version 9.7.3 only; version 9.7.4 only; version 9.7.5 only; …
• ISC Dnsco BIND: version 9.9.3 only; version 9.9.4 only
• Mandriva Business Server: version 1.0 only
• Mandriva Enterprise Server: version 5.0 only
• Novell Suse Linux: version 11 only
• Opensuse Opensuse: version 11.4 only
• Red Hat Enterprise Linux: version 5 only; version 6.0 only
• Slackware Slackware Linux: version 12.1 only; version 12.2 only; version 13.0 only; version 13.1 only; version 13.37 only
• Suse Suse Linux Enterprise Software Development Kit: version 11.0 only

Published 2013-07-29. Last modified 2026-06-16.