bogofilter -- heap corruption through excessively long words

2005-10-23T00:00:00
ID B747B2A9-7BE0-11DA-8EC4-0002B3B60E4C
Type freebsd
Reporter FreeBSD
Modified 2005-10-23T00:00:00

Description

Matthias Andree reports:

Bogofilter's/bogolexer's input handling in version 0.96.2 was not keeping track of its output buffers properly and could overrun a heap buffer if the input contained words whose length exceeded 16,384 bytes, the size of flex's input buffer. A "word" here refers to a contiguous run of input octets that was not '_' and did not match at least one of ispunct(), iscntrl() or isspace().