Elixir Version Module Integer Overflow Vulnerability and Fix

漏洞概述 该漏洞涉及Elixir语言中的版本解析模块（ ）。漏洞允许通过构造特定输入导致整数溢出，从而可能引发安全问题。具体而言，漏洞存在于版本字符串的解析过程中，当解析的数字组件超过14位时，会导致整数溢出。 影响范围 受影响模块： 受影响版本：所有使用Elixir版本解析模块的版本 潜在风险：整数溢出可能导致程序行为异常，甚至被利用进行更严重的攻击 修复方案 1. 限制数字组件长度：在解析版本字符串时，限制每个数字组件的长度不超过14位。 2. 增加验证逻辑：在解析过程中增加对数字组件长度的验证，确保不会超过14位。 POC代码 以下是修复前后的代码对比： 修复前 修复后 测试用例 修复后增加了以下测试用例，确保漏洞被有效修复： ```elixir test "to_string/1" do assert Version.parse("1.2.3") == {:ok, %Version{major: 1, minor: 2, patch: 3}} assert Version.parse("1.2.3+") == {:ok, %Version{major: 1, minor: 2, patch: 3}} assert Version.parse("1.2.3-") == {:error, :invalid} assert Version.parse("1.2.3-4") == {:error, :invalid} assert Version.parse("1.2.3-4.5") == {:error, :invalid} assert Version.parse("1.2.3-4.5+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22+") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-") == {:error, :invalid} assert Version.parse("1.2.3-4.5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23") == {:error, :invalid} assert Version.parse("1.

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Elixir Version Module Integer Overflow Vulnerability and Fix