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CVE-2020-27207

Date: November 26, 2020

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.

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2020-27207
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-27207
https://github.com/sqlcipher/sqlcipher/compare/v4.4.0...v4.4.1
https://www.telekom.com/resource/blob/612796/9f221708832a465f03585a45d7f59b45/dl-201112-denial-of-serviceen-data.pdf
https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842
https://www.mend.io/vulnerability-database/CVE-2020-27207

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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