CVE-2021-3119: Zetetic SQLCipher 4.x before 4.4.3 has a NULL pointer dereferencing issue related to sqlcipher_export in crypto.c and sqlite3StrICmp in sqlite3.c. Thi...

Description

Zetetic SQLCipher 4.x before 4.4.3 has a NULL pointer dereferencing issue related to sqlcipher_export in crypto.c and sqlite3StrICmp in sqlite3.c. This may allow an attacker to perform a remote denial of service attack. For example, an SQL injection can be used to execute the crafted SQL command sequence, which causes a segmentation fault.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Zetetic	Sqlcipher	>= 4.0, < 4.4.3

References

Timeline

Published: Mar 25, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3119?

Zetetic SQLCipher 4.x before 4.4.3 has a NULL pointer dereferencing issue related to sqlcipher_export in crypto.c and sqlite3StrICmp in sqlite3.c. This may allow an attacker to perform a remote denial of service attack. For example, an SQL injection can be used to execute the crafted SQL command sequence, which causes a segmentation fault.

How severe is CVE-2021-3119?

CVE-2021-3119 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3119?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.