Heap-Based Buffer Overflow in Binutils Package: CVE-2023-1972
Summary
ALPINE-CVE-2023-1972: A potential heap based buffer overflow was found in _bfd_elf_slurp_version_tables() in bfd/elf.c. This may lead to loss of availability. Affects binutils versions < 2.40-r7. Fixed in 2.40-r7. How to fix ↓
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Background
Binutils is a collection of binary tools that assist in the management of binary files, including object files, archives, and executable files. It provides essential functionalities for developers, such as linking and assembling. The package is widely used in various software development environments, making its security critical. The vulnerability identified as CVE-2023-1972 affects multiple versions of the binutils package across different Alpine Linux releases.
Vulnerability Detail
A potential heap-based buffer overflow was discovered in the function _bfd_elf_slurp_version_tables() located in bfd/elf.c. This vulnerability can lead to a loss of availability, potentially allowing an attacker to exploit the overflow to crash the application or execute arbitrary code. The issue arises from improper handling of version tables, which can be manipulated to exceed allocated memory bounds.
How To Fix
Minimum fixed version
2.40-r7
This is the first release that contains the fix.
sudo apk add --upgrade binutilsTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, consider limiting access to the affected binutils functionalities or using alternative tools until the package can be updated. No specific code workaround is provided for this vulnerability.
Conclusion
The CVE-2023-1972 vulnerability in the binutils package poses a significant risk due to its potential for heap-based buffer overflow. Users are strongly advised to update to the patched versions to mitigate this risk. Regular monitoring and vulnerability management practices, such as using tools like Vulert, can help maintain software security.
See every vulnerability recorded for binutils →
FAQ
CVE-2023-1972 is a vulnerability in the binutils package that can lead to a heap-based buffer overflow, potentially causing application crashes or arbitrary code execution.
The affected versions include binutils in Alpine Linux v3.18, v3.19, v3.20, v3.21, and v3.22 prior to their respective patched versions.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Check your application against the vulnerability using the Vulert playground at Vulert Scanner.
The CVSS score for CVE-2023-1972 is 6.5, indicating a medium severity level.
If immediate updates are not possible, consider restricting access to the affected functionalities or using alternative tools until the update can be applied.
References
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