bind: localnets ACL bypass caused by WinSock API bug
Published Nov 8, 2013
6.8
MEDIUMCVSS 2.0
EPSS 5.71%
Description
The Winsock WSAIoctl API in Microsoft Windows Server 2008, as used in ISC BIND 9.6-ESV before 9.6-ESV-R10-P1, 9.8 before 9.8.6-P1, 9.9 before 9.9.4-P1, 9.9.3-S1, 9.9.4-S1, and other products, does not properly support the SIO_GET_INTERFACE_LIST command for netmask 255.255.255.255, which allows remote attackers to bypass intended IP address restrictions by leveraging misinterpretation of this netmask as a 0.0.0.0 netmask.
Affected products
No data.
- 9.6
- 9.6
- 9.6
- 9.6
- 9.6
- 9.6
- 9.6
- 9.6
- 9.8.0
- 9.8.0
- 9.8.0
- 9.8.0
- 9.8.0
- 9.8.0
- 9.8.0
- 9.8.1
- 9.8.1
- 9.8.1
- 9.8.1
- 9.8.1
- 9.8.1
- 9.8.2
- 9.8.2
- 9.8.2
- 9.8.3
- 9.8.3
- 9.8.3
- 9.8.4
- 9.8.5
- 9.8.5
- 9.8.5
- 9.8.5
- 9.8.5
- 9.8.5
- 9.8.5
- 9.8.6
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.1
- 9.9.1
- 9.9.1
- 9.9.2
- 9.9.3
- 9.9.3
- 9.9.3
- 9.9.3
- 9.9.3
- 9.9.3
- 9.9.3
- 9.9.4
No data.
Red Hat Enterprise Linux 5
bind
Not affected
Red Hat Enterprise Linux 5
bind97
Not affected
Red Hat Enterprise Linux 6
bind
Not affected
Red Hat Enterprise Linux 7
bind
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| 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 |
| Red Hat Enterprise Linux 7 | bind | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This flaw only affected BIND on Microsoft Windows platforms with a flawed WinSock call. This vulnerability does not affect BIND on Linux or Unix platforms.
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:M/Au:N/C:P/I:P/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 2, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 5.71% (0.05706) | 92.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.71% (0.05706) | 92.00th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.06% (0.01057) | 75.62th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.72% (0.02719) | 76.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.06% (0.01064) | 76.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.45% (0.00452) | 75.98th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.45% (0.00452) | 74.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00452) | 71.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (7)
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2014&m=slackware-security.518391 vendor-advisoryx_refsource_SLACKWARE
- https://access.redhat.com/security/cve/CVE-2013-6230 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1027689 Issue Tracking
- https://kb.isc.org/article/AA-01062 x_refsource_CONFIRMVendor Advisory
- https://kb.isc.org/article/AA-01063 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2013-6230
- https://www.cve.org/CVERecord?id=CVE-2013-6230
| Link | Providers | Tags |
|---|---|---|
| http://www.slackware.com/security/viewer.php?l=slackware-security&y=2014&m=slackware-security.518391 | vendor-advisoryx_refsource_SLACKWARE | |
| https://access.redhat.com/security/cve/CVE-2013-6230 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1027689 | Issue Tracking | |
| https://kb.isc.org/article/AA-01062 | x_refsource_CONFIRMVendor Advisory | |
| https://kb.isc.org/article/AA-01063 | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-6230 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-6230 |
Change history (0)
No recorded changes yet.