Upstream information

CVE-2025-40779 at MITRE

Description

If a DHCPv4 client sends a request with some specific options, and Kea fails to find an appropriate subnet for the client, the `kea-dhcp4` process will abort with an assertion failure. This happens only if the client request is unicast directly to Kea; broadcast messages do not cause the problem.
This issue affects Kea versions 2.7.1 through 2.7.9, 3.0.0, and 3.1.0.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
  CNA (Internet Systems Consortium (ISC)) SUSE
Base Score 7.5 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
  SUSE
Base Score 8.7
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1248801 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • kea >= 3.0.1-1.1
  • kea-devel >= 3.0.1-1.1
  • kea-doc >= 3.0.1-1.1
  • kea-hooks >= 3.0.1-1.1
  • libkea-asiodns62 >= 3.0.1-1.1
  • libkea-asiolink88 >= 3.0.1-1.1
  • libkea-cc82 >= 3.0.1-1.1
  • libkea-cfgrpt3 >= 3.0.1-1.1
  • libkea-config83 >= 3.0.1-1.1
  • libkea-cryptolink64 >= 3.0.1-1.1
  • libkea-d2srv63 >= 3.0.1-1.1
  • libkea-database76 >= 3.0.1-1.1
  • libkea-dhcp109 >= 3.0.1-1.1
  • libkea-dhcp_ddns68 >= 3.0.1-1.1
  • libkea-dhcpsrv130 >= 3.0.1-1.1
  • libkea-dns71 >= 3.0.1-1.1
  • libkea-eval84 >= 3.0.1-1.1
  • libkea-exceptions45 >= 3.0.1-1.1
  • libkea-hooks119 >= 3.0.1-1.1
  • libkea-http87 >= 3.0.1-1.1
  • libkea-log-interprocess3 >= 3.0.1-1.1
  • libkea-log75 >= 3.0.1-1.1
  • libkea-mysql88 >= 3.0.1-1.1
  • libkea-pgsql88 >= 3.0.1-1.1
  • libkea-process90 >= 3.0.1-1.1
  • libkea-stats53 >= 3.0.1-1.1
  • libkea-tcp33 >= 3.0.1-1.1
  • libkea-util-io12 >= 3.0.1-1.1
  • libkea-util101 >= 3.0.1-1.1
  • python3-kea >= 3.0.1-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-15499

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 kea Not affected
SUSE Linux Enterprise High Performance Computing 15 SP6 kea Not affected
SUSE Linux Enterprise High Performance Computing 15 SP7 kea Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 kea Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP6 kea Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP7 kea Not affected
SUSE Linux Enterprise Server 15 SP6 kea Not affected
SUSE Linux Enterprise Server 15 SP7 kea Not affected
SUSE Linux Enterprise Server 16.0 kea Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kea Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 kea Not affected
SUSE Linux Enterprise Server for SAP Applications 16.0 kea Affected
openSUSE Leap 15.6 kea Not affected
Container Status
suse/kea keaNot affected

SUSE Timeline for this CVE

CVE page created: Wed Aug 27 15:00:20 2025
CVE page last modified: Sat Sep 6 23:10:56 2025