Integer Overflow Vulnerability in libexif
Summary
CVE-2016-6328: A vulnerability was found in libexif. Affects libexif across 3 version ranges.
< 0.6.22-r0
< 3cc7842ca200a4da4bd65850e3c20d5a1811afa7
< edad134a28caaa7ea324b8c075bde52da05ad7d9
Fixed in 0.6.22-r0. How to fix ↓
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Background
libexif is an open-source library used for parsing, editing, and manipulating Exif data in image files. Exif data contains metadata such as camera settings, date and time, and location information. This vulnerability (CVE-2016-6328) arises from an integer overflow when parsing the MNOTE entry data of the input file. It can lead to Denial-of-Service (DoS) attacks and Information Disclosure, potentially exposing critical heap chunk metadata and even other applications' private data.
Vulnerability Detail
The integer overflow vulnerability in libexif allows an attacker to manipulate the MNOTE entry data in a way that triggers the overflow. By providing specially crafted input files, an attacker can cause the application using libexif to crash (DoS) or disclose sensitive information from the heap. This vulnerability has a CVSS score of 8.1, indicating a high severity level.
How To Fix
Minimum fixed version
0.6.22-r0
This is the first release that contains the fix.
sudo apk add --upgrade libexifTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is crucial to update to the fixed version of libexif to mitigate the risk.
Conclusion
The integer overflow vulnerability in libexif can have serious consequences, including DoS attacks and Information Disclosure. It is crucial to update to the fixed version of libexif (0.6.22-r0 or later) to mitigate the risk. For further support on vulnerability remediation, contact DevNack.com.
See every vulnerability recorded for libexif →
FAQ
libexif is an open-source library used for parsing and manipulating Exif data in image files.
Exif data is metadata embedded in image files that contains information about the image, such as camera settings, date and time, and location.
An integer overflow occurs when the result of an arithmetic operation exceeds the maximum value that can be represented by the data type.
This vulnerability can lead to Denial-of-Service (DoS) attacks and Information Disclosure, potentially exposing critical heap chunk metadata and even other applications' private data.
To fix this vulnerability, update libexif to version 0.6.22-r0 or later.
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