Denial of service in Sqlparse

1) Incorrect Regular Expression

EUVDB-ID: #VU75325

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a regular expression denial of service attack.

The vulnerability exists due to incorrect processing of user-supplied input within the SQL parser. A remote attacker can pass specially crafted input to the application and perform regular expression denial of service (ReDoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sqlparse: 0.1.15 - 0.4.3

CPE2.3

• cpe:2.3::sqlparse_project:sqlparse:0.1.15:*:*:*:*:*:*:*
• cpe:2.3::sqlparse_project:sqlparse:0.1.16:*:*:*:*:*:*:*
• cpe:2.3::sqlparse_project:sqlparse:0.1.17:*:*:*:*:*:*:*

External links

http://github.com/andialbrecht/sqlparse/security/advisories/GHSA-rrm6-wvj7-cwh2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.