Red Hat Security Advisory: kea security update
DHCP implementation from Internet Systems Consortium, Inc. that features fully functional DHCPv4, DHCPv6 and Dynamic DNS servers. Both DHCP servers fully support server discovery, address assignment, renewal, rebinding and release. The DHCPv6 server supports prefix delegation. Both servers support DNS Update mechanism, using stand-alone DDNS daemon. Security Fix(es): * kea: Invalid characters cause assert (CVE-2025-11232) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The kea DHCP server implementation used in Red Hat Enterprise Linux 10 and associated products contains a vulnerability (CVE-2025-11232) where invalid characters can cause an assertion failure, potentially leading to denial of service or other stability issues. This vulnerability affects DHCPv4, DHCPv6, and Dynamic DNS server components. Red Hat has released updated packages to fix this issue as detailed in advisory RHSA-2025:21038. The vulnerability is categorized under CWE-823 (Use of Out-of-bounds Pointer).
Potential Impact
The vulnerability can cause the kea DHCP server to assert and potentially crash or behave unexpectedly when processing invalid characters. This may result in denial of service conditions affecting DHCP services on impacted Red Hat Enterprise Linux 10 systems. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Red Hat has released updated kea packages for Red Hat Enterprise Linux 10 and related variants that address this vulnerability. Users should apply the official Red Hat update as described in advisory RHSA-2025:21038 and the referenced article https://access.redhat.com/articles/11258 to remediate the issue. Patch status is confirmed as available. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: kea security update
Description
DHCP implementation from Internet Systems Consortium, Inc. that features fully functional DHCPv4, DHCPv6 and Dynamic DNS servers. Both DHCP servers fully support server discovery, address assignment, renewal, rebinding and release. The DHCPv6 server supports prefix delegation. Both servers support DNS Update mechanism, using stand-alone DDNS daemon. Security Fix(es): * kea: Invalid characters cause assert (CVE-2025-11232) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The kea DHCP server implementation used in Red Hat Enterprise Linux 10 and associated products contains a vulnerability (CVE-2025-11232) where invalid characters can cause an assertion failure, potentially leading to denial of service or other stability issues. This vulnerability affects DHCPv4, DHCPv6, and Dynamic DNS server components. Red Hat has released updated packages to fix this issue as detailed in advisory RHSA-2025:21038. The vulnerability is categorized under CWE-823 (Use of Out-of-bounds Pointer).
Potential Impact
The vulnerability can cause the kea DHCP server to assert and potentially crash or behave unexpectedly when processing invalid characters. This may result in denial of service conditions affecting DHCP services on impacted Red Hat Enterprise Linux 10 systems. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Red Hat has released updated kea packages for Red Hat Enterprise Linux 10 and related variants that address this vulnerability. Users should apply the official Red Hat update as described in advisory RHSA-2025:21038 and the referenced article https://access.redhat.com/articles/11258 to remediate the issue. Patch status is confirmed as available. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:21038
- Cve Count
- 1
Threat ID: 6a3da1dd4853345fc182a209
Added to database: 06/25/2026, 21:47:09 UTC
Last enriched: 07/12/2026, 11:08:38 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 29
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