Denial of Service Vulnerability in elfutils Package - CVE-2018-16062
Summary
ALPINE-CVE-2018-16062: dwarf_getaranges in dwarf_getaranges.c in libdw in elfutils before 2018-08-18 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file. Affects elfutils versions < 0.174-r0. Fixed in 0.174-r0. How to fix ↓
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Background
The elfutils package is a collection of utilities for handling ELF (Executable and Linkable Format) files. It provides tools for inspecting and manipulating ELF binaries, which are commonly used in Unix-like operating systems. The package is essential for developers and system administrators who need to analyze binary files for debugging or performance tuning. However, it has been found to contain a vulnerability that could be exploited by remote attackers.
Vulnerability Detail
The vulnerability, identified as CVE-2018-16062, exists in the dwarf_getaranges function within the libdw component of elfutils. This flaw allows remote attackers to trigger a denial of service condition through a crafted file, leading to a heap-based buffer over-read. The issue arises from improper handling of input data, which can cause the application to crash or behave unexpectedly, potentially impacting system stability and availability.
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 updating is not feasible, consider restricting access to the elfutils utilities or implementing network-level controls to prevent the exploitation of this vulnerability until a patch can be applied.
Conclusion
The CVE-2018-16062 vulnerability in the elfutils package poses a significant risk of denial of service through crafted files. It is crucial for users to update to the patched version 0.174-r0 to protect their systems. For those unable to update immediately, implementing workarounds can help mitigate the risk until a proper fix is applied.
See every vulnerability recorded for elfutils →
FAQ
CVE-2018-16062 is a vulnerability in the elfutils package that allows remote attackers to cause a denial of service through a crafted file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The vulnerability can lead to a denial of service, causing the application to crash or behave unexpectedly, which may affect system stability.
Yes, the patched version of the elfutils package is 0.174-r0. Updating to this version will resolve the vulnerability.
If you cannot update right away, consider restricting access to the elfutils utilities or implementing network controls to mitigate the risk.
References
Related vulnerabilities
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