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Test ID:1.3.6.1.4.1.25623.1.0.131103
Category:Mageia Linux Local Security Checks
Title:Mageia Linux Local Check: mgasa-2015-0408
Summary:Mageia Linux Local Security Checks mgasa-2015-0408
Description:Summary:
Mageia Linux Local Security Checks mgasa-2015-0408

Vulnerability Insight:
When libaudiofile is used to change both the number of channels of an audio file (e.g. from stereo to mono) and the sample format (e.g. from 16-bit samples to 8-bit samples), the output file will contain corrupted data. If the new sample format is smaller than the old one, there is a risk of buffer overflow: e.g. when the input file has 16-bit samples and the output file has 8-bit samples, afReadFrames will treat the buffer to read the samples (argument void *data) as a pointer to int16_t instead of int8_t, therefore it will write past its end (CVE-2015-7747).

Solution:
Update the affected packages to the latest available version.

CVSS Score:
6.8

CVSS Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-7747
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170387.html
http://www.openwall.com/lists/oss-security/2015/10/06/2
http://www.ubuntu.com/usn/USN-2787-1
https://bugs.launchpad.net/ubuntu/+source/audiofile/+bug/1502721
https://github.com/ccrisan/motioneyeos/blob/master/package/audiofile/0008-CVE-2015-7747.patch
https://www.openwall.com/lists/oss-security/2015/10/08/1
CopyrightCopyright (C) 2015 Eero Volotinen

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