Rapid7 Vulnerability & Exploit Database

OS X update for curl (CVE-2016-8622)

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OS X update for curl (CVE-2016-8622)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
12/16/2016
Created
07/25/2018
Added
12/16/2016
Modified
03/18/2020

Description

The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.

Solution(s)

  • apple-osx-upgrade-10_12_2

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