Vulnerabilities

c2faxrecv in capi4hylafax 01.02.03 allows remote attackers to execute arbitrary commands via null (\0) and shell metacharacters in the TSI string, as demonstrated by a fax from an anonymous number.

CAPI4HylaFAX 1.3, when compiled with GENERATE_DEBUGSFFDATAFILE set, allows local users to modify arbitrary files via a symlink attack on the c2faxrecv_dbgdatafile.sff temporary file.