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Closed

fuboat opened this issue

Apr 12, 2023

· 0 comments

Closed

virtuoso 7.2.9 crashed at _IO_default_xsputn #1118

fuboat opened this issue

Apr 12, 2023

· 0 comments

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The PoC is generated by my DBMS fuzzer.

CREATE TABLE t2(x VARCHAR, y VARCHAR, c VARCHAR); CREATE VIEW t2 AS SELECT * FROM t2; INSERT INTO t2 VALUES(8,8,RDF_SYS.xsd_hexBinary_fromBinary(SYSTEM_BASE64_ENCODE(zeroblob(200))));

backtrace:

#0 0x7f87bcd56050 (_IO_default_xsputn+0xa0) #1 0x7f87bcd3b0fc (psiginfo+0x13c9c) #2 0x7f87bcd4ff9a (vscanf+0x14a) #3 0x7f87bcd25df6 (__snprintf+0x96) #4 0x5a2227 (sch_full_proc_name_1+0x2c7) #5 0x7879a3 (sinv_find_func_map+0x143) #6 0x788fb7 (sinv_check_exp+0x317) #7 0x78a03d (sinv_sqlo_check_col_val+0xad) #8 0x816d50 (sqlc_insert_view+0x330) #9 0x81721d (sqlc_insert_view+0x7fd) #10 0x81721d (sqlc_insert_view+0x7fd) … #5714 0x81721d (sqlc_insert_view+0x7fd) #5715 0x81721d (sqlc_insert_view+0x7fd) #5716 0x81721d (sqlc_insert_view+0x7fd) #5717 0x6b7387 (sql_stmt_comp+0x987) #5718 0x6ba122 (sql_compile_1+0x1a62) #5719 0x7c8cd0 (stmt_set_query+0x340) #5720 0x7cabc2 (sf_sql_execute+0x922) #5721 0x7cbf4e (sf_sql_execute_w+0x17e) #5722 0x7d4c0d (sf_sql_execute_wrapper+0x3d) #5723 0xe1f01c (future_wrapper+0x3fc) #5724 0xe2691e (_thread_boot+0x11e) #5725 0x7f87bd013609 (start_thread+0xd9) #5726 0x7f87bcde3133 (clone+0x43)

ways to reproduce (write poc to the file ‘/tmp/test.sql’ first):

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”

This was referenced

Apr 14, 2023

1 participant