Heap-Based Buffer Over-Read Vulnerability in elfutils Package
Summary
ALPINE-CVE-2018-16403: libdw in elfutils 0.173 checks the end of the attributes list incorrectly in dwarf_getabbrev in dwarf_getabbrev.c and dwarf_hasattr in dwarf_hasattr.c, leading to a heap-based buffer over-read and an application crash. Affects elfutils versions < 0.174-r0. Fixed in 0.174-r0. 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
The elfutils package is a collection of utilities for handling ELF (Executable and Linkable Format) files, commonly used in Unix-like operating systems. It provides tools for inspecting and manipulating ELF files, making it essential for developers and system administrators. The package is widely utilized for debugging and analyzing binaries. However, a vulnerability has been identified that affects its stability and security.
Vulnerability Detail
The vulnerability, identified as CVE-2018-16403, arises from improper checks at the end of the attributes list in the libdw library within elfutils version 0.173. This flaw can lead to a heap-based buffer over-read, potentially causing application crashes and exposing sensitive data. The vulnerability is particularly concerning as it can be exploited by attackers to manipulate the behavior of applications that rely on elfutils, leading to denial of service or further exploitation.
How To Fix
Minimum fixed version
0.174-r0
This is the first release that contains the fix.
sudo apk add --upgrade elfutilsTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate patching is not feasible, consider limiting the use of elfutils in critical applications until the update can be applied. Additionally, monitor your applications for any unusual behavior that may indicate exploitation attempts.
Conclusion
The CVE-2018-16403 vulnerability in the elfutils package poses significant risks to applications relying on it. It is crucial to update to the patched version to mitigate these risks. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for elfutils →
FAQ
CVE-2018-16403 is a vulnerability in the elfutils package that allows for a heap-based buffer over-read, potentially leading to application crashes.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by this vulnerability.
Exploitation of this vulnerability can lead to application crashes and may expose sensitive information, impacting the overall security of the system.
Yes, a patch is available in version 0.174-r0 of the elfutils package. It is recommended to update to this version or later.
You can update the elfutils package by running the command 'apk upgrade elfutils' in your terminal.
References
Related vulnerabilities
Recent vulnerabilities recorded for elfutils.
