Upstream information
Description
Reliance on IP Address for Authentication vulnerability in Erlang/OTP ssl (inet_tls_dist module) allows unauthenticated bypass of the distribution-over-TLS LAN allowlist.The inet_tls_dist:check_ip/1 function, which enforces a LAN allowlist for Erlang distribution over TLS, calls inet:sockname/1 instead of inet:peername/1 to obtain the peer's IP address. Because inet:sockname/1 returns the local socket address, both the local IP and the supposed peer IP resolve to the same value, causing the subnet mask comparison to always succeed regardless of the actual remote address. Any holder of a CA-signed TLS certificate can therefore bypass the LAN restriction and gain full Erlang distribution access to the node, including rpc:call/4 and code:load_binary/3.
This vulnerability is associated with program file lib/ssl/src/inet_tls_dist.erl.
This issue affects OTP from OTP 26.0 before 29.0.2, 28.5.0.2 and 27.3.4.13 corresponding to ssl from 11.0 before 11.7.2, 11.6.0.2 and 11.2.12.9.
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 8 |
| Vector | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Attack Vector | Adjacent Network |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Changed |
| Confidentiality Impact | High |
| Integrity Impact | High |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (6b3ad84c-e1a6-4bf7-a703-f496b71e49db) |
|---|---|
| Base Score | 7.5 |
| Vector | CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| Attack Vector | Adjacent Network |
| Attack Complexity | High |
| Attack Requirements | Present |
| Privileges Required | Low |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | High |
| Vulnerable System Integrity Impact | High |
| Vulnerable System Availability Impact | High |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 High Performance Computing 15 SP7 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Server 15 SP7 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Server 16.0 | erlang | Affected |
| SUSE Linux Enterprise Server 16.1 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | erlang26 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | erlang | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | erlang | Affected |
| openSUSE Leap 16.0 | erlang | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | erlang26 | Affected |
| SUSE Linux Enterprise Server 15 SP4 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | erlang26 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | erlang26 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | erlang26 | Affected |
| SUSE Manager Proxy 4.3 | erlang | Not affected |
| SUSE Manager Proxy LTS 4.3 | erlang | Not affected |
| SUSE Manager Retail Branch Server 4.3 | erlang | Not affected |
| SUSE Manager Retail Branch Server LTS 4.3 | erlang | Not affected |
| SUSE Manager Server 4.3 | erlang | Not affected |
| SUSE Manager Server LTS 4.3 | erlang | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | erlang | Not affected |
| SUSE Enterprise Storage 7.1 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | erlang | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | erlang26 | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | erlang | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | erlang | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | erlang | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | erlang | Not affected |
| SUSE Manager Proxy 4.1 | erlang | Not affected |
| SUSE Manager Proxy 4.2 | erlang | Not affected |
| SUSE Manager Retail Branch Server 4.1 | erlang | Not affected |
| SUSE Manager Retail Branch Server 4.2 | erlang | Not affected |
| SUSE Manager Server 4.1 | erlang | Not affected |
| SUSE Manager Server 4.2 | erlang | Not affected |
| openSUSE Leap 15.3 | erlang | Not affected |
| openSUSE Leap 15.4 | erlang | Not affected |
| openSUSE Leap 15.5 | erlang | Not affected |
| openSUSE Leap 15.6 | erlang | Not affected |
| openSUSE Leap 15.6 | erlang26 | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Jun 10 20:03:58 2026CVE page last modified: Thu Jun 11 19:31:13 2026