CVE-2013-2266

high
Published 2013-03-28 · Modified 2026-04-29
CVSS v3
CVSS v2
7.8
VIR risk
7.8

Description

libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated by a memory-exhaustion attack against a machine running a named process.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2013-2266

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://kb.isc.org/article/AA-00879/

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.isc.org/software/bind/advisories/cve-2013-2266

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1:9.8.4.dfsg.P1-6+nmu1
debian debianbullseyefixed1:9.8.4.dfsg.P1-6+nmu1
debian debianforkyfixed1:9.8.4.dfsg.P1-6+nmu1
debian debiansidfixed1:9.8.4.dfsg.P1-6+nmu1
debian debiantrixiefixed1:9.8.4.dfsg.P1-6+nmu1

Application impact

VendorProductVersionsFixed
iscbind9.9.0
iscbind9.9.1
iscbind9.9.2
iscbind9.9.3
iscbind9.7.0
iscbind9.7.1
iscbind9.7.2
iscbind9.7.3
iscbind9.7.4
iscbind9.7.5
iscbind9.7.6
iscbind9.8.0
iscbind9.8.1
iscbind9.8.2
iscbind9.8.3
iscbind9.8.4
iscbind9.8.5

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.