CVE-2017-12839 : Exploit Details and Defense Strategies

A heap-based buffer over-read vulnerability in the getbits function in mpg123 versions 1.25.5 and earlier could allow remote attackers to exploit the system through a specially crafted mp3 file, potentially leading to denial-of-service or other impacts.

Understanding CVE-2017-12839

This CVE involves a vulnerability in the getbits function of mpg123 versions 1.25.5 and earlier that could be exploited by remote attackers.

What is CVE-2017-12839?

The getbits function in src/libmpg123/getbits.h in mpg123 versions 1.25.5 and earlier may be vulnerable to a heap-based buffer over-read. This vulnerability could potentially be exploited by remote attackers through a specially crafted mp3 file, leading to a possible denial-of-service condition (out-of-bounds read) or other unspecified impacts.

The Impact of CVE-2017-12839

The vulnerability could allow remote attackers to cause denial-of-service or other unspecified impacts by exploiting a specially crafted mp3 file.

Technical Details of CVE-2017-12839

This section provides technical details of the CVE.

Vulnerability Description

The getbits function in src/libmpg123/getbits.h in mpg123 versions 1.25.5 and earlier may be vulnerable to a heap-based buffer over-read.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: 1.25.5 and earlier

Exploitation Mechanism

The vulnerability could be exploited by remote attackers through a specially crafted mp3 file.

Mitigation and Prevention

Protect your system from CVE-2017-12839 with the following steps:

Immediate Steps to Take

Update mpg123 to version 1.25.6 or later.
Avoid opening untrusted mp3 files.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement network security measures to prevent remote attacks.

Patching and Updates

Ensure timely installation of updates and patches to mitigate the vulnerability.