漏洞信息
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Vulnerability Title
Decompression Bomb in cow_spdy:inflate/2 Allows Memory Exhaustion via Crafted SPDY Frame
Vulnerability Description
Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in ninenines cowlib allows unauthenticated remote denial of service via memory exhaustion.
cow_spdy:inflate/2 in cowlib passes peer-supplied compressed bytes directly to zlib:inflate/2 with no output size bound. The SPDY header compression dictionary (?ZDICT) is public, and zlib compresses long runs of repeated bytes at roughly 1024:1, so a few kilobytes of SPDY frame payload can decompress to gigabytes on the BEAM heap, OOM-killing the node. A single unauthenticated SPDY frame is sufficient to trigger the condition. The parsers for syn_stream, syn_reply, and headers frame types are all affected via cow_spdy:parse_headers/2.
This issue affects cowlib from 0.1.0 before 2.16.1.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
Vulnerability Title
Cowlib 安全漏洞
Vulnerability Description
Cowlib是Nine Nines开源的一个Web协议消息解析与构建库。 Cowlib 0.1.0版本至2.16.1之前版本存在安全漏洞,该漏洞源于对高度压缩数据处理不当,cow_spdy:inflate/2函数未限制输出大小,可能导致未经身份验证的远程攻击者通过内存耗尽造成拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A