sqlparse is a non-validating SQL parser module for Python. In sqlparse versions 0.4.0 and 0.4.1 there is a regular Expression Denial of Service in sqlparse vulnerability. The regular expression may cause exponential backtracking on strings containing many repetitions of '\r\n' in SQL comments. Only the formatting feature that removes comments from SQL statements is affected by this regular expression. As a workaround don't use the sqlformat.format function with keyword strip_comments=True or the --strip-comments command line flag when using the sqlformat command line tool. The issues has been fixed in sqlparse 0.4.2.
References
Link | Resource |
---|---|
https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb | Patch Third Party Advisory |
https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf | Third Party Advisory |
Configurations
Information
Published : 2021-09-20 10:15
Updated : 2021-09-29 08:04
NVD link : CVE-2021-32839
Mitre link : CVE-2021-32839
JSON object : View
CWE
CWE-400
Uncontrolled Resource Consumption
Products Affected
sqlparse_project
- sqlparse