Upstream information
Description
A weakness has been identified in mruby 3.4.0. This vulnerability affects the function ary_fill_exec of the file mrbgems/mruby-array-ext/src/array.c. Executing manipulation of the argument start/length can lead to out-of-bounds write. The attack needs to be launched locally. The exploit has been made available to the public and could be exploited. This patch is called 93619f06dd378db6766666b30c08978311c7ec94. It is best practice to apply a patch to resolve this issue.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (VulDB) |
|---|---|
| Base Score | 4.3 |
| Vector | AV:L/AC:L/Au:S/C:P/I:P/A:P |
| Access Vector | Local |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
| CVSS detail | CNA (VulDB) | SUSE |
|---|---|---|
| Base Score | 5.3 | 5.3 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | Low |
| Integrity Impact | Low | Low |
| Availability Impact | Low | Low |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | CNA (VulDB) | SUSE |
|---|---|---|
| Base Score | 1.9 | 1.9 |
| Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 | Local |
| Attack Complexity | Low | Low |
| Attack Requirements | None | None |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | Low | Low |
| Vulnerable System Integrity Impact | Low | Low |
| Vulnerable System Availability Impact | Low | Low |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
SUSE Timeline for this CVE
CVE page created: Sat Nov 8 00:03:39 2025CVE page last modified: Mon Nov 10 16:47:49 2025