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Check for packets bigger than WTAP_MAX_PACKET_SIZE. 

Change-Id: Ia932f3e5aeaca7a566ea9f00ce1dca1a2071a1a4
Reviewed-on: https://code.wireshark.org/review/15187
Reviewed-by: Guy Harris <guy@alum.mit.edu>
This commit is contained in:
Guy Harris 2016-04-29 19:10:01 -07:00
parent c34cf306ab
commit bc62c096d0
1 changed files with 11 additions and 0 deletions
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11
wiretap/vms.c
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@ -390,6 +390,17 @@ parse_vms_packet(FILE_T fh, struct wtap_pkthdr *phdr, Buffer *buf, int *err, gch
break;
}
} while (! isdumpline(line));
if (pkt_len > WTAP_MAX_PACKET_SIZE) {
/*
* Probably a corrupt capture file; return an error,
* so that our caller doesn't blow up trying to allocate
* space for an immensely-large packet.
*/
*err = WTAP_ERR_BAD_FILE;
*err_info = g_strdup_printf("vms: File has %u-byte packet, bigger than maximum of %u",
pkt_len, WTAP_MAX_PACKET_SIZE);
return FALSE;
}
p = strstr(months, mon);
if (p)