Vulnerability CVE-2020-27207
Published: 2020-11-26   Modified: 2020-11-27

Description:
Zetetic SQLCipher 4.x before 4.4.1 has a use-after-free, related to sqlcipher_codec_pragma and sqlite3Strlen30 in sqlite3.c. A remote denial of service attack can be performed. For example, a SQL injection can be used to execute the crafted SQL command sequence. After that, some unexpected RAM data is read.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Zetetic -> Sqlcipher 

 References:
https://github.com/sqlcipher/sqlcipher/compare/v4.4.0...v4.4.1
https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842
https://www.telekom.com/resource/blob/612796/9f221708832a465f03585a45d7f59b45/dl-201112-denial-of-serviceen-data.pdf
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