漏洞信息
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Vulnerability Title
rpcx - Denial of Service via Gzip Decompression Bomb in Wire Protocol
Vulnerability Description
rpcx through 1.9.3, fixed in commit 047aec1, contains a denial-of-service vulnerability in protocol.Message.Decode (protocol/message.go). When a message has the compression flag set, the payload is gzip-decompressed via util.Unzip with no limit on the decompressed output size. The only built-in size guard, protocol.MaxMessageLength, is checked against the compressed on-the-wire frame length, not the decompressed size, so it provides no protection. Because decoding (and decompression) occurs in readRequest before authentication, a single unauthenticated connection can send a small (under 2 MB) gzip-compressed message that expands to gigabytes of heap allocation, leading to out-of-memory conditions and service unavailability.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
Vulnerability Title
smallnest rpcx 资源管理错误漏洞
Vulnerability Description
smallnest rpcx是中国smallnest个人开发者的一款基于Go语言的RPC框架。 smallnest rpcx 1.9.3及之前版本存在资源管理错误漏洞,该漏洞源于对协议消息解码时,未对Gzip解压输出大小进行限制,导致未经身份验证的攻击者通过网络发送特制的小压缩消息,可造成大量堆内存分配,从而引发拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A