CVE-2015-20001
📋 TL;DR
This vulnerability in Rust's standard library before version 1.2.0 allows memory safety violations when BinaryHeap operations panic. It affects any Rust application using BinaryHeap with custom comparison functions that can panic, potentially leading to arbitrary code execution or crashes.
💻 Affected Systems
- Rust programming language standard library
📦 What is this software?
Rust by Rust Lang
⚠️ Risk & Real-World Impact
Worst Case
Arbitrary code execution via memory corruption leading to full system compromise
Likely Case
Application crash or denial of service due to memory corruption
If Mitigated
No impact if panic-safe code is used or if BinaryHeap isn't utilized
🎯 Exploit Status
Exploitation requires triggering panics in BinaryHeap comparison functions
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Rust 1.2.0 and later
Vendor Advisory: https://github.com/rust-lang/rust/issues/25842
Restart Required: Yes
Instructions:
1. Update Rust toolchain to version 1.2.0 or later using rustup update stable
2. Recompile all affected Rust applications with the updated toolchain
3. Redeploy updated applications
🔧 Temporary Workarounds
Avoid panicking comparisons
allEnsure comparison functions used with BinaryHeap never panic
Avoid BinaryHeap usage
allUse alternative data structures that don't have this vulnerability
🧯 If You Can't Patch
- Implement panic handlers that prevent memory corruption in comparison functions
- Isolate affected applications in containers or VMs with limited privileges
🔍 How to Verify
Check if Vulnerable:
Check Rust version with 'rustc --version' and verify it's below 1.2.0Check Version:
rustc --versionVerify Fix Applied:
Verify Rust version is 1.2.0 or higher with 'rustc --version'📡 Detection & Monitoring
Log Indicators:
- Application crashes with memory corruption errors
- Panic messages from BinaryHeap operations
Network Indicators:
- None - this is a local memory corruption vulnerability
SIEM Query:
Search for application crashes with Rust BinaryHeap in stack traces