CVE-2020-35527

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: Out of bounds access during table rename (CVE-2020-35527)

• sqlite: Null pointer derreference in src/select.c (CVE-2020-35525)

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.

In SQLite 3.31.1, there is an out of bounds access problem through ALTER TABLE for views that have a nested FROM clause.

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: Out of bounds access during table rename (CVE-2020-35527)
• sqlite: Null pointer derreference in src/select.c (CVE-2020-35525)

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.

In SQLite 3.31.1, there is an out of bounds access problem through ALTER TABLE for views that have a nested FROM clause.

• CVE-2020-35527: fix a problem with ALTER TABLE for views that have a nested FROM clause.

• CVE-2020-35527: fix a problem with ALTER TABLE for views that have a nested FROM clause.

It was discovered that SQLite incorrectly handled INTERSEC query processing. An attacker could use this issue to cause SQLite to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-35525)

It was discovered that SQLite incorrectly handled ALTER TABLE for views that have a nested FROM clause. An attacker could use this issue to cause SQLite to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only addressed in Ubuntu 20.04 LTS. (CVE-2020-35527)

It was discovered that SQLite incorrectly handled embedded null characters when tokenizing certain unicode strings. This issue could result in incorrect results. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-20223)