Upstream information
Description
Capstone is a disassembly framework. In 6.0.0-Alpha9 and earlier, Capstone's arch/SH/SHDisassembler.c SH floating-point decoders such as opFADD, opFMUL, and opFSUB call set_reg() and set_reg_n() using sh_info.op.op_count without checking the fixed-size operands[] array. Repeated crafted instructions processed through cs_disasm_iter() or cs_disasm() with CS_ARCH_SH, CS_MODE_SH2A or CS_MODE_SH4A, CS_MODE_SHFPU, and CS_OPT_DETAIL can increment the operand count beyond the 176-byte sh_info allocation and perform a four-byte heap buffer overflow write. The corruption can crash the process and may enable code execution depending on heap layout. This issue is fixed in version 6.0.0-Alpha10.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 7 |
| Vector | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality Impact | High |
| Integrity Impact | High |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) |
|---|---|
| Base Score | 7.3 |
| Vector | CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/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 | Local |
| Attack Complexity | High |
| Attack Requirements | Present |
| Privileges Required | None |
| User Interaction | Passive |
| 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Please note that this evaluation state might be work in progress, incomplete or outdated.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 | capstone | Affected |
| SUSE Linux Enterprise Micro 5.5 | capstone | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | capstone | Affected |
| SUSE Linux Enterprise Server 15 SP7 | capstone | Affected |
| SUSE Linux Enterprise Server 16.0 | capstone | Affected |
| SUSE Linux Enterprise Server 16.1 | capstone | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | capstone | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | capstone | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | capstone | Affected |
| SUSE Linux Micro 6.0 | capstone | Affected |
| SUSE Linux Micro 6.1 | capstone | Affected |
| SUSE Linux Micro 6.2 | capstone | Affected |
| openSUSE Leap 16.0 | capstone | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP5 | capstone | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | capstone | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | capstone | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | capstone | Affected |
| SUSE Linux Enterprise Server 15 SP5 | capstone | Affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | capstone | Affected |
| SUSE Linux Enterprise Server 15 SP6 | capstone | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | capstone | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | capstone | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | capstone | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | capstone | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | capstone | Affected |
| openSUSE Leap 15.5 | capstone | Affected |
| openSUSE Leap 15.6 | capstone | Affected |
| openSUSE Leap Micro 5.5 | capstone | Affected |
SUSE Timeline for this CVE
CVE page created: Fri Aug 21 13:50:58 2026CVE page last modified: Fri Aug 21 15:44:10 2026