#VU18582 Heap-based buffer overflow in cURL - CVE-2019-5436
Published: May 23, 2019
Vulnerability identifier: #VU18582
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-5436
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
cURL
cURL
Software vendor:
curl.haxx.se
curl.haxx.se
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing responses from TFTP server in the tftp_receive_packet() function. A remote attacker can trick the victim to send a request to a malicious TFTP server, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.