SB2018080123 - Out-of-bounds write in curl.haxx.se cURL
Published: August 1, 2018 Updated: August 3, 2020
Security Bulletin ID
SB2018080123
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2016-8617)
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`.
Remediation
Install update from vendor's website.
References
- 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