CVE-2021-32297: Heap Buffer Overflow in LIEF
Summary
CVE-2021-32297: An issue was discovered in LIEF through 0.11.4. Affects lief versions < 0.11.5. Fixed in 0.11.5. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
LIEF is a Python library that allows easy manipulation of binary formats, such as PE, ELF, Mach-O, and others. It provides a high-level interface to analyze, modify, and generate executable files. LIEF is widely used in various security-related applications and research. However, a vulnerability has been discovered in LIEF versions up to 0.11.4.
Vulnerability Detail
The vulnerability, identified as CVE-2021-32297, is a heap buffer overflow that exists in the 'main' function located in 'pe_reader.c'. This flaw can be exploited by an attacker to execute arbitrary code. The heap buffer overflow occurs due to improper input validation, allowing an attacker to overwrite adjacent memory locations and potentially gain control over the affected system. This vulnerability poses a significant risk as it can lead to remote code execution and compromise the integrity and confidentiality of the system.
How To Fix
Minimum fixed version
0.11.5
This is the first release that contains the fix.
pip install --upgrade "lief==0.11.5"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is crucial to update to the fixed version as soon as possible to mitigate the risk of exploitation.
Conclusion
The heap buffer overflow vulnerability in LIEF can lead to remote code execution and compromise of the affected system. It is crucial to update to LIEF version 0.11.5 or later to mitigate this risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for lief →
FAQ
LIEF is a Python library used for binary format manipulation, analysis, and generation.
This vulnerability allows an attacker to execute arbitrary code, potentially leading to remote code execution and compromise of the affected system.
To fix this vulnerability, upgrade to LIEF version 0.11.5 or later using the command 'pip install --upgrade lief'.
Yes, all versions up to 0.11.4 are affected. It is recommended to update to the fixed version.
No, there is no known workaround for this vulnerability. Updating to the fixed version is the only solution.
References
Related vulnerabilities
Recent vulnerabilities recorded for lief.
