CVE-2017-1000099

MEDIUM

Description

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.

References

http://www.securityfocus.com/bid/100281

http://www.securitytracker.com/id/1039119

https://curl.haxx.se/0809C.patch

https://curl.haxx.se/docs/adv_20170809C.html

https://security.gentoo.org/glsa/201709-14

Details

Source: MITRE

Published: 2017-10-05

Updated: 2017-11-01

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM