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home:Alexander_Naumov:SLE-12:Update
libosip2.4662
SIP_body_len_underflow.patch
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File SIP_body_len_underflow.patch of Package libosip2.4662
--- a/libosip2/src/osipparser2/osip_message_parse.c +++ b/libosip2/src/osipparser2/osip_message_parse.c @@ -822,6 +822,16 @@ if ('\n' == start_of_body[0] || '\r' == start_of_body[0]) start_of_body++; + /* Bail out if message body is empty or contains a single CR/LF */ + /* If '\n++--\r\n++--', then end_of_body = start_of_body - 1 */ + /* If '\n++--\r\r\n++--', then end_of_body = start_of_body */ + /* If '\n++--\r\n\n++--', then end_of_body = start_of_body */ + if (end_of_body <= start_of_body) { + osip_free (sep_boundary); + OSIP_TRACE (osip_trace (__FILE__, __LINE__, OSIP_ERROR, NULL, "Could not parse message body.\n")); + return OSIP_SYNTAXERROR; + } + body_len = end_of_body - start_of_body; /* Skip CR before end boundary. */
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