CVE-2021-32839
Last modified
CVE-2021-32839 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.13% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sqlparse Project | Sqlparse | >= 0.4.0, < 0.4.2 |
References
- https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aebPatch, Third Party Advisory
- https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhfThird Party Advisory
- https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aebPatch, Third Party Advisory
- https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhfThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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