Out-of-bounds write in cURL - CVE-2016-8617
Published: August 1, 2018 / Updated: August 3, 2020
Vulnerability identifier: #VU33012
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-8617
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: curl.haxx.se
Affected software:
cURL
cURL
Detailed vulnerability description
The vulnerability allows a local authenticated user to execute arbitrary code.
The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`.
How to mitigate CVE-2016-8617
Install update from vendor's website.
Sources
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/94097
- http://www.securitytracker.com/id/1037192
- https://access.redhat.com/errata/RHSA-2018:2486
- https://access.redhat.com/errata/RHSA-2018:3558
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8617
- https://curl.haxx.se/CVE-2016-8617.patch
- https://curl.haxx.se/docs/adv_20161102C.html
- https://security.gentoo.org/glsa/201701-47
- https://www.tenable.com/security/tns-2016-21