6.5
CVSSv3

CVE-2017-1000099

Published: 05/10/2017 Updated: 01/11/2017
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Vulnerability Summary

When asking to get a file from a file:// URL, libcurl provides a feature that outputs meta-data about the file using HTTP-like headers. The code doing this would send the wrong buffer to the user (stdout or the application's provide callback), which could lead to other private data from the heap to get inadvertently displayed. The wrong buffer was an uninitialized memory area allocated on the heap and if it turned out to not contain any zero byte, it would continue and display the data following that buffer in memory.

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haxx libcurl 7.54.1

Vendor Advisories

FILE buffer read out of bounds (CVE-2017-1000099) TFTP sends more than buffer size (CVE-2017-1000100) URL globbing out of bounds read (CVE-2017-1000101) ...
When asking to get a file from a file:// URL, libcurl provides a feature that outputs meta-data about the file using HTTP-like headers The code doing this would send the wrong buffer to the user (stdout or the application's provide callback), which could lead to other private data from the heap to get inadvertently displayed The wrong buffer was ...
An information disclosure issue has been found in curl < 7550 When asking to get a file from a file:// URL, libcurl provides a feature that outputs meta-data about the file using HTTP-like headers The code doing this would send the wrong buffer to the user (stdout or the application's provide callback), which could lead to other private data ...