From: dan Date: Sat, 24 Aug 2019 17:11:29 +0000 (+0000) Subject: Fix a potential buffer overrun in fts5 caused by corrupt database records. X-Git-Tag: version-3.30.0~111 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=298680d15a694b4c4b5fb7f7bd5d06cb3f08016e;p=thirdparty%2Fsqlite.git Fix a potential buffer overrun in fts5 caused by corrupt database records. FossilOrigin-Name: 156d612800a7282fe0ebb20feb31d3fd577f4ab60fab8c00940c87143997aefb --- diff --git a/ext/fts5/fts5_index.c b/ext/fts5/fts5_index.c index 000ce98033..3fa97c2fea 100644 --- a/ext/fts5/fts5_index.c +++ b/ext/fts5/fts5_index.c @@ -4997,9 +4997,12 @@ static void fts5MergePrefixLists( Fts5PoslistWriter writer; memset(&writer, 0, sizeof(writer)); + /* See the earlier comment in this function for an explanation of why + ** corrupt input position lists might cause the output to consume + ** at most 20 bytes of unexpected space. */ fts5MergeAppendDocid(&out, iLastRowid, i2.iRowid); fts5BufferZero(&tmp); - sqlite3Fts5BufferSize(&p->rc, &tmp, i1.nPoslist + i2.nPoslist); + sqlite3Fts5BufferSize(&p->rc, &tmp, i1.nPoslist + i2.nPoslist + 10 + 10); if( p->rc ) break; sqlite3Fts5PoslistNext64(a1, i1.nPoslist, &iOff1, &iPos1); diff --git a/ext/fts5/test/fts5corrupt3.test b/ext/fts5/test/fts5corrupt3.test index 2391d97eea..306ae9fe03 100644 --- a/ext/fts5/test/fts5corrupt3.test +++ b/ext/fts5/test/fts5corrupt3.test @@ -9367,6 +9367,131 @@ do_catchsql_test 63.3 { SELECT * FROM t1 WHERE b MATCH 'thead*thead*theSt*'; } {/*malformed database schema*/} +#--------------------------------------------------------------------------- +do_test 64.0 { + sqlite3 db {} + db deserialize [decode_hexdb { +.open --hexdb +| size 28672 pagesize 4096 filename crash-4470f0b94422f7.db +| page 1 offset 0 +| 0: 53 51 4c 69 74 65 20 66 6f 72 6d 61 74 20 33 00 SQLite format 3. +| 16: 10 00 01 01 00 40 20 20 00 00 00 00 00 00 00 06 .....@ ........ +| 32: 00 00 00 00 00 00 00 00 00 00 00 06 00 00 00 04 ................ +| 96: 00 00 00 00 0d 00 00 00 06 0d e2 00 0f c4 0f 6a ...............j +| 112: 0e fc 0e 9d 0e 3d 0d e2 00 00 00 00 00 01 00 00 .....=.......... +| 3552: 00 00 59 06 06 17 21 21 01 7f 74 61 62 6c 65 74 ..Y...!!..tablet +| 3568: 74 74 5f 63 6f 6e 66 69 67 74 74 74 5f 63 6f 6e tt_configttt_con +| 3584: 66 69 67 06 43 52 45 41 54 45 20 54 41 42 4c 45 fig.CREATE TABLE +| 3600: 20 27 74 74 74 5f 63 6f 6e 66 69 67 27 28 6b 20 'ttt_config'(k +| 3616: 50 52 49 4d 41 52 59 20 4b 45 59 2c 20 76 29 20 PRIMARY KEY, v) +| 3632: 57 49 54 48 4f 55 54 20 52 4f 57 49 44 5e 05 07 WITHOUT ROWID^.. +| 3648: 17 23 23 01 81 03 74 61 62 6c 65 74 74 74 5f 64 .##...tablettt_d +| 3664: 6f 63 73 69 7a 65 74 74 74 5f 64 6f 63 73 69 7a ocsizettt_docsiz +| 3680: 65 05 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 e.CREATE TABLE ' +| 3696: 74 74 74 5f 64 6f 63 73 69 7a 65 27 28 69 64 20 ttt_docsize'(id +| 3712: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 INTEGER PRIMARY +| 3728: 4b 45 59 2c 20 73 7a 20 42 4c 4f 42 29 5d 04 07 KEY, sz BLOB)].. +| 3744: 17 23 23 01 81 01 74 61 62 6c 65 74 74 74 5f 63 .##...tablettt_c +| 3760: 6f 6e 74 65 6e 74 74 74 74 5f 63 6f 6e 74 65 6e ontentttt_conten +| 3776: 74 04 43 52 45 41 54 45 20 54 41 42 4c 45 20 27 t.CREATE TABLE ' +| 3792: 74 74 74 5f 63 6f 6e 74 65 6e 74 27 28 69 64 20 ttt_content'(id +| 3808: 49 4e 54 45 47 45 52 20 50 52 49 4d 41 52 59 20 INTEGER PRIMARY +| 3824: 4b 45 59 2c 20 63 30 2c 20 63 31 29 6c 03 07 17 KEY, c0, c1)l... +| 3840: 1b 1b 01 81 2f 74 61 62 6c 65 74 74 74 5f 69 64 ..../tablettt_id +| 3856: 78 74 74 74 5f 69 64 78 03 43 52 45 41 54 45 20 xttt_idx.CREATE +| 3872: 54 41 42 4c 45 20 27 74 74 74 5f 69 64 78 27 28 TABLE 'ttt_idx'( +| 3888: 73 65 67 69 64 2c 20 74 65 72 6d 2c 20 70 67 6e segid, term, pgn +| 3904: 6f 2c 20 50 52 49 4d 41 52 59 20 4b 45 59 28 73 o, PRIMARY KEY(s +| 3920: 65 67 69 64 2c 20 74 65 72 6d 29 29 20 57 49 54 egid, term)) WIT +| 3936: 48 4f 55 54 20 52 4f 57 49 44 58 02 07 17 1d 1d HOUT ROWIDX..... +| 3952: 01 81 03 74 61 62 6c 65 74 74 74 5f 64 61 74 61 ...tablettt_data +| 3968: 74 74 74 5f 64 61 74 61 02 43 52 45 41 54 45 20 ttt_data.CREATE +| 3984: 54 41 42 4c 45 20 27 74 74 74 5f 64 61 74 61 27 TABLE 'ttt_data' +| 4000: 28 69 64 20 49 4e 54 45 47 45 52 20 50 52 49 4d (id INTEGER PRIM +| 4016: 41 52 59 20 4b 45 59 2c 20 62 6c 6f 63 6b 20 42 ARY KEY, block B +| 4032: 4c 4f 42 29 3a 01 06 17 13 13 08 5f 74 61 62 6c LOB):......_tabl +| 4048: 65 74 74 74 74 74 74 43 52 45 41 54 45 20 56 49 ettttttCREATE VI +| 4064: 52 54 55 41 4c 20 54 41 42 4c 45 20 74 74 74 20 RTUAL TABLE ttt +| 4080: 55 53 49 4e 47 20 66 74 73 35 28 61 2c 20 62 29 USING fts5(a, b) +| page 2 offset 4096 +| 0: 0d 0f 44 00 05 0e 81 00 0f 1a 0e 81 0f af 0f 58 ..D............X +| 16: 0e 98 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +| 3712: 00 15 0a 03 00 30 00 00 00 00 01 03 03 00 03 01 .....0.......... +| 3728: 01 01 02 01 01 03 01 01 81 24 8c 80 80 80 80 01 .........$...... +| 3744: 04 00 82 4c 00 00 00 9b 02 30 65 03 1a 02 05 05 ...L.....0e..... +| 3760: 07 05 01 01 04 03 03 08 03 03 01 2e 02 05 05 07 ................ +| 3776: 05 07 05 07 05 01 01 04 03 03 08 03 03 08 03 03 ................ +| 3792: 07 f3 03 02 01 65 03 1e 03 05 05 04 05 05 01 00 .....e.......... +| 3808: 03 06 04 04 06 04 03 01 36 03 05 05 04 06 05 04 ........6....... +| 3824: 06 05 04 05 05 01 01 03 06 04 04 06 04 04 06 04 ................ +| 3840: 04 06 04 03 03 01 65 03 14 04 05 06 f5 05 01 01 ......e......... +| 3856: 02 08 09 01 20 04 05 07 05 07 05 07 05 05 01 00 .... ........... +| 3872: 02 08 0a 0a 0a 04 01 65 03 02 0a 01 06 0a 0a 0a .......e........ +| 3888: 05 01 65 03 06 01 01 0a 01 0a 01 01 0a 0a 0a 04 ..e............. +| 3904: 2b 31 21 0b 0f ef 00 14 2a 00 00 00 00 01 02 02 +1!.....*....... +| 3920: 00 02 01 01 01 02 01 01 50 88 80 80 80 80 01 04 ........P....... +| 3936: 00 81 24 00 00 00 47 02 30 65 02 1a 02 05 05 07 ..$...G.0e...... +| 3952: 05 01 01 04 03 03 08 03 03 02 01 65 02 1e 03 05 ...........e.... +| 3968: 05 04 05 05 01 01 03 06 04 04 06 04 03 03 01 65 ...............e +| 3984: 02 14 04 05 07 05 05 01 01 02 08 0a 04 01 65 02 ..............e. +| 4000: 02 0a 05 01 65 02 06 01 01 0a 04 12 14 0f 06 31 ....e..........1 +| 4016: 84 80 80 80 80 01 03 00 68 00 00 00 2b 02 30 65 ........h...+.0e +| 4032: 01 10 02 05 05 01 01 04 03 03 02 01 65 01 12 03 ............e... +| 4048: 05 05 01 01 03 06 04 03 03 01 65 01 0e 04 05 05 ..........e..... +| 4064: 01 01 02 08 04 0d 0e 06 01 03 00 12 04 4c 4c 00 .............LL. +| 4080: 00 00 11 24 00 00 00 00 01 01 01 00 01 01 01 01 ...$............ +| page 3 offset 8192 +| 0: 0a 00 00 00 03 0f ec 00 0f 00 00 00 00 00 00 00 ................ +| 4064: 00 00 00 00 00 00 00 00 00 00 00 00 06 04 01 0c ................ +| 4080: 01 03 02 06 04 01 0c 01 02 02 05 04 09 0c 01 02 ................ +| page 4 offset 12288 +| 0: 0d 00 00 00 04 0e 1a 00 0f c7 0f 5b 0e ef 0e 1a ...........[.... +| 3600: 00 00 00 00 00 00 00 00 00 00 81 52 04 06 00 81 ...........R.... +| 3616: 5d 81 55 65 20 65 65 20 65 65 65 20 65 20 65 65 ].Ue ee eee e ee +| 3632: 20 65 65 65 20 65 20 65 65 20 65 65 65 66 20 65 eee e ee eeef e +| 3648: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65 e eee e ee eee e +| 3664: 20 65 65 20 65 65 65 65 20 65 65 20 65 65 65 20 ee eeee ee eee +| 3680: 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65 e ee eee e ee ee +| 3696: 65 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 ee ee eee e ee e +| 3712: 65 65 20 65 20 65 65 20 65 65 65 65 65 65 20 65 ee e ee eeeeee e +| 3728: 65 20 65 20 65 20 65 20 65 65 20 65 65 65 20 65 e e e e ee eee e +| 3744: 65 20 65 65 65 65 65 20 65 65 20 65 20 65 1f 65 e eeeee ee e e.e +| 3760: 20 65 65 20 65 65 65 20 65 65 20 65 65 65 65 65 ee eee ee eeeee +| 3776: 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65 65 ee e e e ee eee +| 3792: 20 65 65 20 65 65 65 65 65 20 65 65 20 65 20 65 ee eeeee ee e e +| 3808: 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65 6a e ee eee ee eej +| 3824: 03 03 ff 75 71 65 20 65 65 1f 65 65 65 20 65 20 ...uqe ee.eee e +| 3840: 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65 65 ee eee e ee eeee +| 3856: 20 65 65 20 65 65 65 20 65 20 65 65 20 65 65 65 ee eee e ee eee +| 3872: 20 65 20 65 65 20 65 65 65 65 65 65 20 65 65 20 e ee eeeeee ee +| 3888: 65 20 65 20 65 20 65 65 20 65 65 65 20 65 65 20 e e e ee eee ee +| 3904: 65 65 65 65 65 20 65 65 20 65 20 65 20 65 20 65 eeeee ee e e e e +| 3920: 65 20 65 65 65 20 65 65 20 65 65 6a 02 04 00 75 e eee ee eej...u +| 3936: 40 65 20 65 65 20 65 65 65 20 65 20 65 65 20 65 @e ee eee e ee e +| 3952: 65 65 20 65 20 65 65 20 65 65 65 65 20 65 65 20 ee e ee eeee ee +| 3968: 65 65 65 20 65 20 65 65 20 65 65 65 20 65 20 65 eee e ee eee e e +| 3984: 65 20 65 65 65 65 65 65 20 65 65 20 65 20 65 20 e eeeeee ee e e +| 4000: 65 20 65 65 20 65 65 65 20 65 65 20 65 65 65 65 e ee eee ee eeee +| 4016: 65 20 65 65 20 65 20 65 20 65 20 65 65 20 65 65 e ee e e e ee ee +| 4032: 65 20 65 65 20 65 65 37 01 04 00 41 3f 65 20 65 e ee ee7...A?e e +| 4048: 65 20 65 65 65 20 65 20 65 65 20 65 65 65 20 65 e eee e ee eee e +| 4064: 20 65 65 20 65 65 65 65 65 65 20 65 65 20 65 20 ee eeeeee ee e +| 4080: 65 20 65 20 65 65 20 65 65 65 20 65 65 20 65 65 e e ee eee ee ee +| page 5 offset 16384 +| 0: 0d 00 00 00 04 0f e4 00 0f f9 0f f2 0f eb 0f e4 ................ +| 4064: 00 00 00 00 05 04 03 00 10 21 21 05 03 03 00 10 .........!!..... +| 4080: 11 11 05 02 03 00 10 11 11 05 01 03 00 10 09 09 ................ +| page 6 offset 20480 +| 0: 0a 00 00 00 01 0f f4 00 0f f4 00 00 00 00 00 00 ................ +| 4080: 00 00 00 00 0b 03 1b 01 76 65 72 73 69 6f 6e 04 ........version. +| end crash-4470f0b94422f7.db +}]} {} + +do_catchsql_test 64.1 { + SELECT * FROM ttt('e*'); +} {1 {database disk image is malformed}} + + sqlite3_fts5_may_be_corrupt 0 finish_test diff --git a/manifest b/manifest index 7938652485..8fbc28972e 100644 --- a/manifest +++ b/manifest @@ -1,5 +1,5 @@ -C Fix\sthe\sbuilt-in\sedit()\sSQL\sfunction\sin\sthe\sCLI\sso\sthat\sit\sworks\swith\nzero-length\sblobs. -D 2019-08-23T23:05:32.503 +C Fix\sa\spotential\sbuffer\soverrun\sin\sfts5\scaused\sby\scorrupt\sdatabase\srecords. +D 2019-08-24T17:11:29.099 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 @@ -116,7 +116,7 @@ F ext/fts5/fts5_buffer.c 5a5fe0159752c0fb0a5a93c722e9db2662822709490769d482b76a6 F ext/fts5/fts5_config.c d7523cba5e66da077233c023aecbc3e6a37978ff75a18131c5ab5b1229d5bac7 F ext/fts5/fts5_expr.c 840c88d55e78083a5e61a35968df877712ae28791b347eced1e98e3b337d2d3c F ext/fts5/fts5_hash.c 1cc0095646f5f3b46721aa112fb4f9bf29ae175cb5338f89dcec66ed97acfe75 -F ext/fts5/fts5_index.c cd363c2fa3e626c04a9b7c705ff50222b4cab052704938f6a24881602ed3ed0d +F ext/fts5/fts5_index.c ada7661078752941e1d83bd42fe5aedef3350a1ccb9076c98153090ccd1d2f0d F ext/fts5/fts5_main.c b2c42f1cef9673ecdd498b22c38483a4380bcf1701d1e61b021a2945f18e42e1 F ext/fts5/fts5_storage.c 801b4e3cd33786a60a07b6b01f86d0fbdf7e68325054e08d17176293a8081e99 F ext/fts5/fts5_tcl.c 39bcbae507f594aad778172fa914cad0f585bf92fd3b078c686e249282db0d95 @@ -157,7 +157,7 @@ F ext/fts5/test/fts5connect.test 08030168fc96fc278fa81f28654fb7e90566f33aff269c0 F ext/fts5/test/fts5content.test 9517cc527a8e8a33949652d5c7b5e251f8c3d5ae3f23f01d4320e30f29a0336b F ext/fts5/test/fts5corrupt.test 77ae6f41a7eba10620efb921cf7dbe218b0ef232b04519deb43581cb17a57ebe F ext/fts5/test/fts5corrupt2.test 7453752ba12ce91690c469a6449d412561cc604b1dec994e16ab132952e7805f -F ext/fts5/test/fts5corrupt3.test 99318789d84c678ed6388e61109b9f7b92c64419e87e4881093c01e219c5d397 +F ext/fts5/test/fts5corrupt3.test 1e0a557a2c33d26a516d8ae57685a77001e9887a7457abcea6be1c4ac77332e8 F ext/fts5/test/fts5corrupt4.test ea805c4d7c68b5f185b9db5d2060a7ae5875339738dd48203c92162f41e7ca91 F ext/fts5/test/fts5delete.test cbf87e3b8867c4d5cfcaed975c7475fd3f99d072bce2075fcedf43d1f82af775 F ext/fts5/test/fts5detail.test 31b240dbf6d44ac3507e2f8b65f29fdc12465ffd531212378c7ce1066766f54e @@ -1836,7 +1836,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 -P 44578865fa7baf9760e355691ca9ce753295aaba7a4ee0bba29d4f85d9335bab -R d576abe88102041dd107794a8906549d -U drh -Z e6a2c406773297981564bcc226b2bf48 +P e32490128684cfeeb8213baecc78a7942b8fb63d00e375edd965bf236faeed18 +R 61cea08062816b86beb5c1f5910b0854 +U dan +Z 0284ef6b0b4932b74129e7c6ac32b7ce diff --git a/manifest.uuid b/manifest.uuid index c235cac52f..5f960bb4c8 100644 --- a/manifest.uuid +++ b/manifest.uuid @@ -1 +1 @@ -e32490128684cfeeb8213baecc78a7942b8fb63d00e375edd965bf236faeed18 \ No newline at end of file +156d612800a7282fe0ebb20feb31d3fd577f4ab60fab8c00940c87143997aefb \ No newline at end of file