Multiple vulnerabilities in SQLite

Published: 2019-03-22 17:42:21 | Updated: 2019-03-22
Severity Medium
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2019-9936
CVE-2019-9937
CVSSv3 2 [CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
4.3 [CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CWE ID CWE-125
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software SQLite
Vulnerable software versions SQLite 3.27.1
SQLite 3.27.0
SQLite 3.26.0

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Vendor URL SQLite

Security Advisory

1) Out-of-bounds read

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the fts5HashEntrySort in sqlite3.c when running fts5 prefix queries inside a transaction. A remote user with ability to send queries can trigger heap-based buffer over-read error and read contents of memory on the system.

Remediation

Install updates from vendor's website.

External links

https://sqlite.org/src/info/b3fa58dd7403dbd4
https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114382.html
https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114394.html

2) NULL pointer dereference

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dreference error when processing interleaving reads and writes in a single transaction with an fts5 virtual table in fts5ChunkIterate in sqlite3.c. This is related to ext/fts5/fts5_hash.c and ext/fts5/fts5_index.c. A remote attacker can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

External links

https://sqlite.org/src/info/45c73deb440496e8
https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114383.html
https://www.mail-archive.com/sqlite-users@mailinglists.sqlite.org/msg114393.html

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