Security Fix for CVE-2020-24741 in QLibrary (qlibrary_unix.cpp) · Pull Request !103 · src-openEuler/qt

This pull request addresses the security vulnerability CVE-2020-24741 found in the QLibrary module. The issue is related to improper handling of certain paths when loading shared libraries, which could allow an attacker to exploit this flaw and load malicious shared libraries, leading to potential security risks. This patch introduces a fix that properly handles paths in a way that mitigates the risk, ensuring secure library loading practices are followed.

**Origin of the Issue:**
- **CVE-2020-24741**: [CVE Details](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24741)
- **Bug Report**: [CVE-2020-24741 on GitHub](https://github.com/qt/qtbase/issues/16079)

**Code Changes Introduced:**

1. **Path Handling Adjustment in QLibrary**
   - The following changes ensure that paths are properly handled, preventing the loading of malicious shared libraries:
   ```diff
   + if (path.isEmpty() && prefixes.at(prefix).contains(QLatin1Char('/')))
   +     continue;
   ```
   - This modification checks for cases where paths should not be processed inappropriately and ensures the library loader behaves securely by rejecting suspicious paths.

**Impact of Changes:**
The patch directly addresses the risk of malicious shared libraries being loaded due to incorrect path handling, a critical security flaw. The changes ensure that any path-based issues are mitigated, preventing potential exploitation of the vulnerability.

Your feedback and additional validation would be highly appreciated to expedite the merging of this security fix.

src-openEuler/qt .gitee-modal { width: 500px !important; }

搜索帮助

src-openEuler/qt