CVE-2020-15358

In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.

SQLite is a C library that implements an SQL database engine. A large subset of SQL92 is supported. A complete database is stored in a single disk file. The API is designed for convenience and ease of use. Applications that link against SQLite can enjoy the power and flexibility of an SQL database without the administrative hassles of supporting a separate database server.

Security Fix(es):

• sqlite: integer overflow in sqlite3_str_vappendf function in printf.c (CVE-2020-13434)

• sqlite: heap-based buffer overflow in multiSelectOrderBy due to mishandling of query-flattener optimization in select.c (CVE-2020-15358)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.

In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.

In sqlite3Select of select.c, there is a possible out-of-bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.

In SQLite 3.31.1, isAuxiliaryVtabOperator allows attackers to trigger a NULL pointer dereference and segmentation fault because of generated column optimizations (CVE-2020-9327).

SQLite through 3.31.1 allows attackers to cause a denial of service (segmentation fault) via a malformed window-function query because the AggInfo object's initialization is mishandled (CVE-2020-11655).

SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c (CVE-2020-13434).

SQLite through 3.32.0 has a segmentation fault in sqlite3ExprCodeTarget in expr.c (CVE-2020-13435).

ext/fts3/fts3.c in SQLite before 3.32.0 has a use-after-free in fts3EvalNextRow, related to the snippet feature (CVE-2020-13630).

SQLite before 3.32.0 allows a virtual table to be renamed to the name of one of its shadow tables, related to alter.c and build.c (CVE-2020-13631).

ext/fts3/fts3_snippet.c in SQLite before 3.32.0 has a NULL pointer dereference via a crafted matchinfo() query (CVE-2020-13632).

SQLite 3.32.2 has a use-after-free in resetAccumulator in select.c because the parse tree rewrite for window functions is too late (CVE-2020-13871).

In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation (CVE-2020-15358).

This update for sqlite3 fixes the following issues:

• Update to version 3.36.0
• CVE-2020-15358: heap-based buffer overflow in multiSelectOrderBy due to mishandling of query-flattener optimization (bsc#1173641)
• CVE-2020-9327: NULL pointer dereference and segmentation fault because of generated column optimizations in isAuxiliaryVtabOperator (bsc#1164719)
• CVE-2019-20218: selectExpander in select.c proceeds with WITH stack unwinding even after a parsing error (bsc#1160439)
• CVE-2019-19959: memory-management error via ext/misc/zipfile.c involving embedded '\0' input (bsc#1160438)
• CVE-2019-19923: improper handling of certain uses of SELECT DISTINCT in flattenSubquery may lead to null pointer dereference (bsc#1160309)
• CVE-2019-19924: improper error handling in sqlite3WindowRewrite() (bsc#1159850)
• CVE-2019-19925: improper handling of NULL pathname during an update of a ZIP archive (bsc#1159847)
• CVE-2019-19926: improper handling of certain errors during parsing multiSelect in select.c (bsc#1159715)
• CVE-2019-19880: exprListAppendList in window.c allows attackers to trigger an invalid pointer dereference (bsc#1159491)
• CVE-2019-19603: during handling of CREATE TABLE and CREATE VIEW statements, does not consider confusion with a shadow table name (bsc#1158960)
• CVE-2019-19646: pragma.c mishandles NOT NULL in an integrity_check PRAGMA command in certain cases of generated columns (bsc#1158959)
• CVE-2019-19645: alter.c allows attackers to trigger infinite recursion via certain types of self-referential views in conjunction with ALTER TABLE statements (bsc#1158958)
• CVE-2019-19317: lookupName in resolve.c omits bits from the colUsed bitmask in the case of a generated column, which allows attackers to cause a denial of service (bsc#1158812)
• CVE-2019-19244: sqlite3,sqlite2,sqlite: The function sqlite3Select in select.c allows a crash if a sub-select uses both DISTINCT and window functions, and also has certain ORDER BY usage (bsc#1157818)
• CVE-2015-3415: sqlite3VdbeExec comparison operator vulnerability (bsc#928701)
• CVE-2015-3414: sqlite3,sqlite2: dequoting of collation-sequence names (bsc#928700)
• CVE-2020-13434: integer overflow in sqlite3_str_vappendf (bsc#1172115)
• CVE-2020-13630: (bsc#1172234: use-after-free in fts3EvalNextRow
• CVE-2020-13631: virtual table allowed to be renamed to one of its shadow tables (bsc#1172236)
• CVE-2020-13632: NULL pointer dereference via crafted matchinfo() query (bsc#1172240)
• CVE-2020-13435: Malicious SQL statements could have crashed the process that is running SQLite (bsc#1172091)

This update was imported from the SUSE:SLE-15:Update update project.

This update for sqlite3 fixes the following issues:

• Update to version 3.36.0
• CVE-2020-15358: heap-based buffer overflow in multiSelectOrderBy due to mishandling of query-flattener optimization (bsc#1173641)
• CVE-2020-9327: NULL pointer dereference and segmentation fault because of generated column optimizations in isAuxiliaryVtabOperator (bsc#1164719)
• CVE-2019-20218: selectExpander in select.c proceeds with WITH stack unwinding even after a parsing error (bsc#1160439)
• CVE-2019-19959: memory-management error via ext/misc/zipfile.c involving embedded '\0' input (bsc#1160438)
• CVE-2019-19923: improper handling of certain uses of SELECT DISTINCT in flattenSubquery may lead to null pointer dereference (bsc#1160309)
• CVE-2019-19924: improper error handling in sqlite3WindowRewrite() (bsc#1159850)
• CVE-2019-19925: improper handling of NULL pathname during an update of a ZIP archive (bsc#1159847)
• CVE-2019-19926: improper handling of certain errors during parsing multiSelect in select.c (bsc#1159715)
• CVE-2019-19880: exprListAppendList in window.c allows attackers to trigger an invalid pointer dereference (bsc#1159491)
• CVE-2019-19603: during handling of CREATE TABLE and CREATE VIEW statements, does not consider confusion with a shadow table name (bsc#1158960)
• CVE-2019-19646: pragma.c mishandles NOT NULL in an integrity_check PRAGMA command in certain cases of generated columns (bsc#1158959)
• CVE-2019-19645: alter.c allows attackers to trigger infinite recursion via certain types of self-referential views in conjunction with ALTER TABLE statements (bsc#1158958)
• CVE-2019-19317: lookupName in resolve.c omits bits from the colUsed bitmask in the case of a generated column, which allows attackers to cause a denial of service (bsc#1158812)
• CVE-2019-19244: sqlite3,sqlite2,sqlite: The function sqlite3Select in select.c allows a crash if a sub-select uses both DISTINCT and window functions, and also has certain ORDER BY usage (bsc#1157818)
• CVE-2015-3415: sqlite3VdbeExec comparison operator vulnerability (bsc#928701)
• CVE-2015-3414: sqlite3,sqlite2: dequoting of collation-sequence names (bsc#928700)
• CVE-2020-13434: integer overflow in sqlite3_str_vappendf (bsc#1172115)
• CVE-2020-13630: (bsc#1172234: use-after-free in fts3EvalNextRow
• CVE-2020-13631: virtual table allowed to be renamed to one of its shadow tables (bsc#1172236)
• CVE-2020-13632: NULL pointer dereference via crafted matchinfo() query (bsc#1172240)
• CVE-2020-13435: Malicious SQL statements could have crashed the process that is running SQLite (bsc#1172091)

This update for sqlite3 fixes the following issues:

• Update to version 3.36.0
• CVE-2020-15358: heap-based buffer overflow in multiSelectOrderBy due to mishandling of query-flattener optimization (bsc#1173641)
• CVE-2020-9327: NULL pointer dereference and segmentation fault because of generated column optimizations in isAuxiliaryVtabOperator (bsc#1164719)
• CVE-2019-20218: selectExpander in select.c proceeds with WITH stack unwinding even after a parsing error (bsc#1160439)
• CVE-2019-19959: memory-management error via ext/misc/zipfile.c involving embedded '\0' input (bsc#1160438)
• CVE-2019-19923: improper handling of certain uses of SELECT DISTINCT in flattenSubquery may lead to null pointer dereference (bsc#1160309)
• CVE-2019-19924: improper error handling in sqlite3WindowRewrite() (bsc#1159850)
• CVE-2019-19925: improper handling of NULL pathname during an update of a ZIP archive (bsc#1159847)
• CVE-2019-19926: improper handling of certain errors during parsing multiSelect in select.c (bsc#1159715)
• CVE-2019-19880: exprListAppendList in window.c allows attackers to trigger an invalid pointer dereference (bsc#1159491)
• CVE-2019-19603: during handling of CREATE TABLE and CREATE VIEW statements, does not consider confusion with a shadow table name (bsc#1158960)
• CVE-2019-19646: pragma.c mishandles NOT NULL in an integrity_check PRAGMA command in certain cases of generated columns (bsc#1158959)
• CVE-2019-19645: alter.c allows attackers to trigger infinite recursion via certain types of self-referential views in conjunction with ALTER TABLE statements (bsc#1158958)
• CVE-2019-19317: lookupName in resolve.c omits bits from the colUsed bitmask in the case of a generated column, which allows attackers to cause a denial of service (bsc#1158812)
• CVE-2019-19244: sqlite3,sqlite2,sqlite: The function sqlite3Select in select.c allows a crash if a sub-select uses both DISTINCT and window functions, and also has certain ORDER BY usage (bsc#1157818)
• CVE-2015-3415: sqlite3VdbeExec comparison operator vulnerability (bsc#928701)
• CVE-2015-3414: sqlite3,sqlite2: dequoting of collation-sequence names (bsc#928700)
• CVE-2020-13434: integer overflow in sqlite3_str_vappendf (bsc#1172115)
• CVE-2020-13630: (bsc#1172234: use-after-free in fts3EvalNextRow
• CVE-2020-13631: virtual table allowed to be renamed to one of its shadow tables (bsc#1172236)
• CVE-2020-13632: NULL pointer dereference via crafted matchinfo() query (bsc#1172240)
• CVE-2020-13435: Malicious SQL statements could have crashed the process that is running SQLite (bsc#1172091)

This update for sqlite3 fixes the following issues:

sqlite3 is sync version 3.36.0 from Factory (jsc#SLE-16032).

The following CVEs have been fixed in upstream releases up to this point, but were not mentioned in the change log so far:

• bsc#1173641, CVE-2020-15358: heap-based buffer overflow in multiSelectOrderBy due to mishandling of query-flattener optimization
• bsc#1164719, CVE-2020-9327: NULL pointer dereference and segmentation fault because of generated column optimizations in isAuxiliaryVtabOperator
• bsc#1160439, CVE-2019-20218: selectExpander in select.c proceeds with WITH stack unwinding even after a parsing error
• bsc#1160438, CVE-2019-19959: memory-management error via ext/misc/zipfile.c involving embedded '\0' input
• bsc#1160309, CVE-2019-19923: improper handling of certain uses of SELECT DISTINCT in flattenSubquery may lead to null pointer dereference
• bsc#1159850, CVE-2019-19924: improper error handling in sqlite3WindowRewrite()
• bsc#1159847, CVE-2019-19925: improper handling of NULL pathname during an update of a ZIP archive
• bsc#1159715, CVE-2019-19926: improper handling of certain errors during parsing multiSelect in select.c
• bsc#1159491, CVE-2019-19880: exprListAppendList in window.c allows attackers to trigger an invalid pointer dereference
• bsc#1158960, CVE-2019-19603: during handling of CREATE TABLE and CREATE VIEW statements, does not consider confusion with a shadow table name
• bsc#1158959, CVE-2019-19646: pragma.c mishandles NOT NULL in an integrity_check PRAGMA command in certain cases of generated columns
• bsc#1158958, CVE-2019-19645: alter.c allows attackers to trigger infinite recursion via certain types of self-referential views in conjunction with ALTER TABLE statements
• bsc#1158812, CVE-2019-19317: lookupName in resolve.c omits bits from the colUsed bitmask in the case of a generated column, which allows attackers to cause a denial of service
• bsc#1157818, CVE-2019-19244: sqlite3,sqlite2,sqlite: The function sqlite3Select in select.c allows a crash if a sub-select uses both DISTINCT and window functions, and also has certain ORDER BY usage
• bsc#928701, CVE-2015-3415: sqlite3VdbeExec comparison operator vulnerability
• bsc#928700, CVE-2015-3414: sqlite3,sqlite2: dequoting of collation-sequence names
• CVE-2020-13434 bsc#1172115: integer overflow in sqlite3_str_vappendf
• CVE-2020-13630 bsc#1172234: use-after-free in fts3EvalNextRow
• CVE-2020-13631 bsc#1172236: virtual table allowed to be renamed to one of its shadow tables
• CVE-2020-13632 bsc#1172240: NULL pointer dereference via crafted matchinfo() query
• CVE-2020-13435: Malicious SQL statements could have crashed the process that is running SQLite (bsc#1172091)

It was discovered that SQLite incorrectly handled query-flattener optimization. An attacker could use this issue to cause SQLite to crash, resulting in a denial of service, or possibly execute arbitrary code.