Denial of Service Vulnerability in libvorbis: CVE-2018-10392
Summary
ALPINE-CVE-2018-10392: mapping0_forward in mapping0.c in Xiph.Org libvorbis 1.3.6 does not validate the number of channels, which allows remote attackers to cause a denial of service (heap-based buffer overflow or over-read) or possibly have u... Affects libvorbis versions < 1.3.6-r1. Fixed in 1.3.6-r1. 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
libvorbis is an open-source audio codec library developed by the Xiph.Org Foundation. It is widely used for encoding and decoding audio files in various applications. The library is known for its high-quality audio compression and is often integrated into multimedia software. However, it has a vulnerability that can lead to severe security issues, particularly when handling malformed audio files.
Vulnerability Detail
The vulnerability identified as CVE-2018-10392 arises from the mapping0_forward function in mapping0.c within libvorbis version 1.3.6. This function fails to validate the number of audio channels, which can be exploited by remote attackers. By supplying a crafted audio file, an attacker can trigger a heap-based buffer overflow or over-read, potentially leading to a denial of service or other unspecified impacts. The CVSS score for this vulnerability is 8.8, indicating a high severity level.
How To Fix
Minimum fixed version
1.3.6-r1
This is the first release that contains the fix.
sudo apk add --upgrade libvorbisTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, avoid processing untrusted or unverified audio files with the libvorbis library until the package is updated. Implementing strict validation checks on audio files before processing can also mitigate the risk.
Conclusion
The CVE-2018-10392 vulnerability in libvorbis poses a significant risk due to its potential for denial of service attacks. Users are strongly advised to update to the patched version to ensure the security of their applications. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
See every vulnerability recorded for libvorbis →
FAQ
CVE-2018-10392 is a vulnerability in the libvorbis library that allows remote attackers to exploit a flaw in the mapping0_forward function, leading to potential denial of service.
You can check if your application is affected by using the Vulert playground at Vulert Scanner, which analyzes your manifest file for vulnerabilities.
Exploitation of this vulnerability can lead to a denial of service, causing the application to crash or behave unexpectedly when processing malicious audio files.
Yes, a patch is available in version 1.3.6-r1 of the libvorbis package. Updating to this version will resolve the vulnerability.
If an immediate update is not possible, avoid processing untrusted audio files and implement validation checks to reduce the risk of exploitation.
References
Related vulnerabilities
Recent vulnerabilities recorded for libvorbis.
