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CVE-2021-20223

Status Candidate

Overview

An issue was found in fts5UnicodeTokenize() in ext/fts5/fts5_tokenize.c in Sqlite. A unicode61 tokenizer configured to treat unicode "control-characters" (class Cc), was treating embedded nul characters as tokens. The issue was fixed in sqlite-3.34.0 and later.

Related Files

Ubuntu Security Notice USN-5616-3
Posted Jun 28, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5616-3 - USN-5615-1 fixed several vulnerabilities in SQLite. This update provides the corresponding fix for CVE-2020-35525 for Ubuntu 14.04 LTS. 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.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-35525, CVE-2020-35527, CVE-2021-20223
SHA-256 | e102e49cabc4982b20f72380848bdef7ff6fcd0d96c28c84d33a6434d02aed1b
Ubuntu Security Notice USN-5615-1
Posted Sep 16, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5615-1 - 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. 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.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-35525, CVE-2020-35527, CVE-2021-20223
SHA-256 | 0a1703f5ce2199a67b12a051081405528c9c13c99cee6f6c919040b70488b5e2
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