Vulnerability Information
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Vulnerability Title
Insufficient patch for Regular Expression Denial of Service (ReDoS) to jsx-slack v4.5.1
Vulnerability Description
jsx-slack is a package for building JSON objects for Slack block kit surfaces from JSX. The maintainers found the patch for CVE-2021-43838 in jsx-slack v4.5.1 is insufficient tfor protection from a Regular Expression Denial of Service (ReDoS) attack. If an attacker can put a lot of JSX elements into `<blockquote>` tag _with including multibyte characters_, an internal regular expression for escaping characters may consume an excessive amount of computing resources. v4.5.1 passes the test against ASCII characters but misses the case of multibyte characters. jsx-slack v4.5.2 has updated regular expressions for escaping blockquote characters to prevent catastrophic backtracking. It is also including an updated test case to confirm rendering multiple tags in `<blockquote>` with multibyte characters.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Vulnerability Title
jsx-slack 安全漏洞
Vulnerability Description
jsx-slack是从JSX为Slack 块套件表面构建 JSON 对象。 jsx-slack 存在安全漏洞，该漏洞源于 CVE-2021-43838 补丁不足以防止正则表达式CNNVD-202112-2019 标签中，那么内部用于转义字符的正则表达式可能会消耗过多的计算资源。
CVSS Information
N/A
Vulnerability Type
N/A