Upstream information
Description
Botan is a C++ cryptography library. From 2.7.0 until 3.13.0, Botan's Scrypt implementation on 32-bit platforms computes required memory with unchecked multiplication, allowing attacker-controlled Scrypt parameters to wrap the allocation size and create a buffer smaller than the algorithm subsequently writes. The issue affects systems that enable Scrypt and accept arbitrary parameters from a hostile source, including applications that decrypt attacker-supplied encrypted private keys. A triggering parameter set can cause approximately four gigabytes of Scrypt output to be written past the allocated heap buffer, immediately crashing the process and causing denial of service. Arbitrary code execution is not demonstrated and appears difficult, but cannot be excluded from the overwrite primitive. This issue is fixed in version 3.13.0.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 4.4 |
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) |
|---|---|
| Base Score | 4.1 |
| Vector | CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/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 |
| Attack Vector | Local |
| Attack Complexity | High |
| Attack Requirements | Present |
| Privileges Required | Low |
| User Interaction | Passive |
| 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 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Server 12 SP5 | Botan | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | Botan | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | Botan | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | Botan | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Desktop 12 | Botan | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | Botan | Not affected |
| SUSE Linux Enterprise Desktop 12 SP2 | Botan | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | Botan | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | Botan | Not affected |
| SUSE Linux Enterprise Server 12 | Botan | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | Botan | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | Botan | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | Botan | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | Botan | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | Botan | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | Botan | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | Botan | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | Botan | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | Botan | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 | Botan | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | Botan | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | Botan | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | Botan | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | Botan | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | Botan | Not affected |
SUSE Timeline for this CVE
CVE page created: Mon Nov 9 12:01:31 2026CVE page last modified: Tue Nov 10 14:00:52 2026