CVE-2023-45927
📋 TL;DR
CVE-2023-45927 is an arithmetic exception vulnerability in S-Lang 2.3.2's tt_sprintf() function that can lead to denial of service or potentially arbitrary code execution. This affects any application or system that uses the vulnerable S-Lang library version. The high CVSS score indicates significant security impact.
💻 Affected Systems
- S-Lang
📦 What is this software?
S Lang by Jedsoft
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the arithmetic exception can be weaponized into memory corruption.
Likely Case
Application crash and denial of service when processing malicious input through tt_sprintf().
If Mitigated
Limited impact with proper input validation and sandboxing in place.
🎯 Exploit Status
Exploitation requires triggering the arithmetic exception with specific input to tt_sprintf().
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.3 or later
Vendor Advisory: http://lists.jedsoft.org/lists/slang-users/2023/0000003.html
Restart Required: Yes
Instructions:
1. Check current S-Lang version. 2. Update to S-Lang 2.3.3 or later via package manager. 3. Recompile any applications using S-Lang. 4. Restart affected services.
🔧 Temporary Workarounds
Input Validation
allImplement strict input validation for data passed to tt_sprintf() functions.
Library Isolation
linuxRun vulnerable applications in containers or sandboxes to limit impact.
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable systems
- Deploy application-level firewalls to filter malicious input
🔍 How to Verify
Check if Vulnerable:
Check S-Lang version: 'slsh -v' or 'rpm -q slang' or 'dpkg -l libslang2'Check Version:
slsh -v 2>&1 | grep VersionVerify Fix Applied:
Confirm version is 2.3.3 or later and test tt_sprintf() with known problematic inputs.📡 Detection & Monitoring
Log Indicators:
- Application crashes
- Segmentation faults in S-Lang processes
- Arithmetic exception errors
Network Indicators:
- Unusual traffic patterns to services using S-Lang
SIEM Query:
source="*" ("segmentation fault" OR "arithmetic exception") AND process="*slang*"