zeek/zeek
Apr 2026 – May 2026
2 Months active
Languages Used
C++Python
Technical Skills
C++ developmentnetwork programmingprotocol analysisDNS protocoltesting
Urval Kheni
PROFILE
Urval Kheni
Worked on strengthening DNS protocol parsing and robustness in the zeek/zeek repository, focusing on security and correctness. Addressed EDNS option parsing by implementing RR-local boundary validation and introducing parsing state to prevent overflows between resource records, using C++ for precise memory and protocol handling. Enhanced error signaling and resilience by ensuring malformed EDNS options are detected and handled robustly, with targeted tests validating these behaviors. Further improved DNS reliability by enforcing minimum RDATA sizes for SVCB records, updating parsing logic, and expanding test coverage. Demonstrated expertise in C++, network programming, and protocol analysis, delivering maintainable, test-driven improvements.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
2Total
Bugs
2
Commits
2
Features
0
Lines of code
181
Activity Months2
Your Network
80 peopleShared Repositories
80
Work History
May 2026
1 Commits
May 1, 2026Month: 2026-05. Focused on DNS robustness in zeek/zeek, delivering a critical SVCB RDATA validation bug fix, updating parsing logic, and expanding test coverage. Result: more reliable DNS handling with reduced risk of malformed SVCB processing.
1 Commits
May 1, 2026Month: 2026-05. Focused on DNS robustness in zeek/zeek, delivering a critical SVCB RDATA validation bug fix, updating parsing logic, and expanding test coverage. Result: more reliable DNS handling with reduced risk of malformed SVCB processing.
May 2026
April 2026
1 Commits
Apr 1, 2026Month: 2026-04 — Zeek/zeek EDNS parsing hardening and testing improvements. Implemented EDNS Option Parsing Boundary Validation with RR-local bounds to enforce per-RR lengths and prevent reads into subsequent RRs. Introduced RR-local parsing state and option-local pointers, ensuring the outer DNS cursor advances exactly once by rdlength. Added tests to validate behavior with malformed EDNS options (btests) and to verify that EDNS_truncated_option is raised exactly once and that there is no unintended parsing of later records. This work strengthens parsing correctness, security, and protocol conformance with minimal performance impact.
April 2026
1 Commits
Apr 1, 2026Month: 2026-04 — Zeek/zeek EDNS parsing hardening and testing improvements. Implemented EDNS Option Parsing Boundary Validation with RR-local bounds to enforce per-RR lengths and prevent reads into subsequent RRs. Introduced RR-local parsing state and option-local pointers, ensuring the outer DNS cursor advances exactly once by rdlength. Added tests to validate behavior with malformed EDNS options (btests) and to verify that EDNS_truncated_option is raised exactly once and that there is no unintended parsing of later records. This work strengthens parsing correctness, security, and protocol conformance with minimal performance impact.
Activity
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Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture90.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++Python
Technical Skills
C++ developmentDNS protocolnetwork programmingprotocol analysistesting
Repositories Contributed To
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