zeek/scripts
Arne Welzel b57a854633 MIME: Cap nested MIME analysis depth to 100
OSS-Fuzz managed to produce a MIME multipart message construction with
thousands of nested entities (or that's what Zeek makes out of it anyhow).
Prevent such deep analysis by capping at a nesting depth of 100,
preventing unnecessary resource usage. A new weird named exceeded_mime_max_depth
is reported when this limit is reached.

This change reduces the runtime of the OSS-Fuzz reproducer from ~45 seconds
to ~2.5 seconds.

The test PCAP was produced from a Python script using the email package
and sending the rendered version via POST to a HTTP server.

(cherry picked from commit 997c017df937ea47d999d9724e247c3d0e38e509)
2024-01-19 08:22:50 -07:00
..
base MIME: Cap nested MIME analysis depth to 100 2024-01-19 08:22:50 -07:00
policy Merge remote-tracking branch 'origin/topic/awelzel/3540-known-hosts-expire-time' 2024-01-12 13:04:08 -07:00
site telemetry: Disable metrics centralization by default 2023-06-21 20:13:55 +02:00
spicy Spicy: Support additional documentation tags inside EVT files. 2023-09-21 10:54:02 +02:00
zeekygen zeekygen: Disable zeek_init() handlers causing error output 2023-10-11 15:18:33 +02:00
CMakeLists.txt Use the same rules as cmake submodule to reformat Zeek 2023-05-09 08:31:43 -07:00
test-all-policy.zeek telemetry: Disable metrics centralization by default 2023-06-21 20:13:55 +02:00