Upstream information
Description
Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), erlang otp erts (erts modules) allows Forced Integer Overflow, Excessive Allocation. This vulnerability is associated with program files erts/emulator/beam/external.c, emulator/beam/external.c.The BIT_BINARY_EXT tag (77) handler in the External Term Format (ETF) decoder accepts an encoding with both length and trailing-bits fields set to zero. The subsequent computation of the bitstring size underflows an unsigned integer, producing a value of roughly 2^64 that is then passed as a memory allocation size. The allocator aborts the entire node with a message such as "Cannot allocate 2305843009213693951 bytes of memory (of type binary)".
The crash is a VM-level abort, not an Erlang-level exception. It cannot be intercepted by supervision trees, by try/catch, or by passing the [safe] option to binary_to_term/2 (which only restricts atom creation and does not perform structural validation of binary encodings).
Any application that decodes ETF from untrusted sources via binary_to_term/1,2 or enif_binary_to_term() is exposed. The Erlang distribution protocol also decodes incoming terms through the same code path, but distribution is expected to run on trusted networks per the OTP Secure Coding Guidelines (DSG-011).
This issue affects OTP from OTP 27.0 before OTP 29.0.4, OTP 28.5.0.4 and OTP 27.3.4.15, corresponding to erts from 15.0 before 17.0.4, 16.4.0.4 and 15.2.7.11.
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 5.9 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (6b3ad84c-e1a6-4bf7-a703-f496b71e49db) | SUSE |
|---|---|---|
| Base Score | 8.2 | 8.2 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/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 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | Present | Present |
| Privileges Required | None | None |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | High | High |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 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 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | erlang | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | erlang26 | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | erlang26 | Not 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 | Not 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 | Not 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 | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | erlang | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | erlang26 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | erlang | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | erlang26 | Not 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 | Not 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 | Not affected |
SUSE Timeline for this CVE
CVE page created: Wed Jul 29 21:52:38 2026CVE page last modified: Thu Jul 30 19:48:15 2026