CVE-2011-2464

CVE-2011-2464 is a medium-severity vulnerability in Isc Bind with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 19% (97th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Isc Bind
• Published: 2011-07-08
• Last modified: 2026-06-16

Description

Unspecified vulnerability in ISC BIND 9 9.6.x before 9.6-ESV-R4-P3, 9.7.x before 9.7.3-P3, and 9.8.x before 9.8.0-P4 allows remote attackers to cause a denial of service (named daemon crash) via a crafted UPDATE request.

Frequently asked questions

What is CVE-2011-2464?

Unspecified vulnerability in ISC BIND 9 9.6.x before 9.6-ESV-R4-P3, 9.7.x before 9.7.3-P3, and 9.8.x before 9.8.0-P4 allows remote attackers to cause a denial of service (named daemon crash) via a crafted UPDATE request.

How severe is CVE-2011-2464?

CVE-2011-2464 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-2464 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2464?

CVE-2011-2464 primarily affects Isc Bind. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2464?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2464 published?

CVE-2011-2464 was published on 2011-07-08 and last updated on 2026-06-16.

References

• http://blogs.oracle.com/sunsecurity/entry/cve_2011_2464_remote_denial
• http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062522.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062846.html
• http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00006.html
• http://marc.info/?l=bugtraq&m=131983337229394&w=2
• http://osvdb.org/73605
• http://secunia.com/advisories/45082
• http://secunia.com/advisories/45089
• http://secunia.com/advisories/45143
• http://secunia.com/advisories/45177
• http://secunia.com/advisories/45185
• http://secunia.com/advisories/45223
• http://secunia.com/advisories/45410
• http://secunia.com/advisories/45412
• http://support.apple.com/kb/HT5002
• http://www.debian.org/security/2011/dsa-2272
• http://www.isc.org/software/bind/advisories/cve-2011-2464
• http://www.kb.cert.org/vuls/id/142646
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:115
• http://www.redhat.com/support/errata/RHSA-2011-0926.html
• http://www.securityfocus.com/archive/1/518749/100/0/threaded
• http://www.securityfocus.com/bid/48566
• http://www.securitytracker.com/id?1025742
• http://www.slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.377171
• https://exchange.xforce.ibmcloud.com/vulnerabilities/68375
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13997
• https://www.ubuntu.com/usn/USN-1163-1/

Affected products (41)

• cpe:2.3:a:isc:bind:9.6:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.0:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.1:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.1:p2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.1:p3:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.0:b1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.0:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.0:p2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.1:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.1:p2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.2:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.2:p2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.2:p3:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.2b1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.3:b1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.3:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.7.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.8.0:a1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.8.0:b1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.8.0:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.8.0:p2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.8.0:rc1:*:*:*:*:*:*

More vulnerabilities in Isc Bind

• CVE-2008-0122 — Critical (CVSS 10.0): Off-by-one error in the inet_network function in libbind in ISC BIND 9.4.2 and earlier, as used in libc in FreeBSD 6.2…
• CVE-2001-0011 — Critical (CVSS 10.0): Buffer overflow in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.
• CVE-2001-0013 — Critical (CVSS 10.0): Format string vulnerability in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.
• CVE-2001-0010 — Critical (CVSS 10.0): Buffer overflow in transaction signature (TSIG) handling code in BIND 8 allows remote attackers to gain root privileges.
• CVE-2000-1029 — Critical (CVSS 10.0): Buffer overflow in host command allows a remote attacker to execute arbitrary commands via a long response to an AXFR…
• CVE-1999-0837 — Critical (CVSS 10.0): Denial of service in BIND by improperly closing TCP sessions via so_linger.

All CVEs affecting Isc Bind →