bytecodealliance wasmtime 跨界内存写
CVE编号
CVE-2022-39394利用情况
暂无补丁情况
N/A披露时间
2022-11-11漏洞描述
Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime's C API implementation where the definition of the `wasmtime_trap_code` does not match its declared signature in the `wasmtime/trap.h` header file. This discrepancy causes the function implementation to perform a 4-byte write into a 1-byte buffer provided by the caller. This can lead to three zero bytes being written beyond the 1-byte location provided by the caller. This bug has been patched and users should upgrade to Wasmtime 2.0.2. This bug can be worked around by providing a 4-byte buffer casted to a 1-byte buffer when calling `wasmtime_trap_code`. Users of the `wasmtime` crate are not affected by this issue, only users of the C API function `wasmtime_trap_code` are affected.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bc... | |
| https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | bytecodealliance | wasmtime | * | Up to (excluding) 1.0.2 | |||||
| 运行在以下环境 | |||||||||
| 应用 | bytecodealliance | wasmtime | * | From (including) 2.0.0 | Up to (excluding) 2.0.2 | ||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-787 | 跨界内存写 |
Exp相关链接
版权声明
本站原创文章转载请注明文章出处及链接，谢谢合作！
评论