VDB
CVE-2021-32839
CVE-2021-32839
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 2.34% · 83.5th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
2.34%
83.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | sqlparse | 0 |
Timeline
- Sep 10, 2021 CVE Published
- Sep 21, 2021 EPSS Score
- Oct 5, 2021 EPSS Score
- Oct 11, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 14, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 13, 2022 EPSS Score
- May 10, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 31, 2022 EPSS Score
References
- https://ubuntu.com/security/notices/USN-5085-1 advisory
- https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-32839 third-party-advisory
- https://ubuntu.com/security/CVE-2021-32839 advisory