bind: RRSIG queries can trigger server crash when using Response Policy Zones (RPZ)
Published May 9, 2011
5.0
MEDIUMCVSS 2.0
EPSS 5.37%
Description
ISC BIND 9.8.x before 9.8.0-P1, when Response Policy Zones (RPZ) RRset replacement is enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via an RRSIG query.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
bind
Not affected
Red Hat Enterprise Linux 5
bind
Not affected
Red Hat Enterprise Linux 5
bind97
Not affected
Red Hat Enterprise Linux 6
bind
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind97 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | bind | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of bind as shipped with Red Hat Enterprise Linux 4, 5, or 6 as they did not include support for Response Policy Zones (RPZ).
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.37% (0.05368) | 92.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.37% (0.05368) | 91.59th | v5 (v2026.06.15) |
| Nov 30, 2025 | 22.51% (0.22514) | 95.61th | v4 (v2025.03.14) |
| Oct 19, 2025 | 20.43% (0.20430) | 95.27th | v4 (v2025.03.14) |
| Mar 30, 2025 | 22.51% (0.22514) | 95.36th | v4 (v2025.03.14) |
| Mar 29, 2025 | 42.34% (0.42336) | 96.20th | v4 (v2025.03.14) |
| Mar 19, 2025 | 23.52% (0.23520) | 95.30th | v4 (v2025.03.14) |
| Mar 17, 2025 | 24.86% (0.24861) | 95.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 90.00% (0.90005) | 98.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 90.00% (0.90005) | 98.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.10% (0.02103) | 79.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.10% (0.02103) | 78.04th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.10% (0.02103) | 56.73th | v2 (v2022.01.01) |
References (11)
- http://secunia.com/advisories/44416 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.securityfocus.com/archive/1/517900/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/47734 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025503 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2011/1183 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2011-1907 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=702701 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67297 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2011-1907
- https://www.cve.org/CVERecord?id=CVE-2011-1907
- https://www.isc.org/CVE-2011-1907 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/44416 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.securityfocus.com/archive/1/517900/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/47734 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025503 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2011/1183 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-1907 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=702701 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/67297 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-1907 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-1907 | ||
| https://www.isc.org/CVE-2011-1907 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.