FreeSWITCH 允许授权用户通过发送包含重复编解码器名称的 SDP 的 re-INVITE 来引发拒绝服务攻击 (CVE-2023-40019)
CVE编号
CVE-2023-40019利用情况
暂无补丁情况
N/A披露时间
2023-08-08漏洞描述
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.10.10, FreeSWITCH allows authorized users to cause a denial of service attack by sending re-INVITE with SDP containing duplicate codec names. When a call in FreeSWITCH completes codec negotiation, the `codec_string` channel variable is set with the result of the negotiation. On a subsequent re-negotiation, if an SDP is offered that contains codecs with the same names but with different formats, there may be too many codec matches detected by FreeSWITCH leading to overflows of its internal arrays. By abusing this vulnerability, an attacker is able to corrupt stack of FreeSWITCH leading to an undefined behavior of the system or simply crash it. Version 1.10.10 contains a patch for this issue.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/signalwire/freeswitch/releases/tag/v1.10.10 | |
| https://github.com/signalwire/freeswitch/security/advisories/GHSA-gjj5-79p2-9g3q |
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 | freeswitch | freeswitch | * | Up to (excluding) 1.10.10 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 无
- 完整性 无
| CWE-ID | 漏洞类型 |
| CWE-770 | 不加限制或调节的资源分配 |
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