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| author | Gerald Combs <gerald@wireshark.org> | 2011-06-09 18:31:39 +0000 |
|---|---|---|
| committer | Gerald Combs <gerald@wireshark.org> | 2011-06-09 18:31:39 +0000 |
| commit | 04f147f4fa268e5277899d4c133cbfac124aa4c1 (patch) | |
| tree | fa19093315f6877936d013c783ba902b4aadfaef /wiretap | |
| parent | 90e539b55f72ae42a753b008220086aa69c22087 (diff) | |
| download | wireshark-04f147f4fa268e5277899d4c133cbfac124aa4c1.tar.gz wireshark-04f147f4fa268e5277899d4c133cbfac124aa4c1.tar.bz2 wireshark-04f147f4fa268e5277899d4c133cbfac124aa4c1.zip | |
Make sure we don't write invalid record lengths.
svn path=/trunk/; revision=37634
Diffstat (limited to 'wiretap')
| -rw-r--r-- | wiretap/libpcap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/wiretap/libpcap.c b/wiretap/libpcap.c index 4557839b89..bb232b5fd2 100644 --- a/wiretap/libpcap.c +++ b/wiretap/libpcap.c @@ -997,6 +997,12 @@ static gboolean libpcap_dump(wtap_dumper *wdh, } rec_hdr.hdr.incl_len = phdr->caplen + phdrsize; rec_hdr.hdr.orig_len = phdr->len + phdrsize; + + if (rec_hdr.hdr.incl_len > WTAP_MAX_PACKET_SIZE || rec_hdr.hdr.orig_len > WTAP_MAX_PACKET_SIZE) { + *err = WTAP_ERR_BAD_RECORD; + return FALSE; + } + switch (wdh->file_type) { case WTAP_FILE_PCAP: |