Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
macournoyer/thin
master @ ac5b2f3
4
Fixes
1
CVEs
HIGH
Peak severity
33.3%
Coverage
Highlights
Denial of Service: 3 prior fixes. Scrutinize any change in this area.
lib/thin/connection.rb: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Denial of Service: Improper cleanup of temporary files representing request bodies can lead to file descriptor leaks, ultimately exhausting system resources and causing a denial of service. Developers must use explicit close operations rather than simple delete hooks.
HTTP Response Splitting: Inadequate sanitization of HTTP response header values allows attackers to inject CRLF sequences, leading to HTTP response splitting or cache poisoning. All response headers must be strictly validated against CR and LF characters before formatting.
Denial of Service: A premature client disconnection causes get_peername to return nil, triggering a NilClass exception when calling Socket.unpack_sockaddr_in and crashing the connection handler. Sockets must be verified as active before querying peer information.