CVE-2021-32839

描述

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.

如何修補 CVE-2021-32839

要修補 CVE-2021-32839,請將受影響套件升級到下列已修補版本。

• —升級至 0.4.2 或更新版本

CVE-2021-32839 正在被利用嗎?

低 — EPSS 為 2.1%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 0.4.0, < 0.4.2

CVSS 分數

參考連結(7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-32839
• ADVISORYsecuritylab.github.com/advisories/GHSL-2021-107-andialbrecht-sqlparse
• PATCHgithub.com/andialbrecht/sqlparse
• WEBgithub.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb