#VU15671 Integer overflow in libcurl - CVE-2018-16839
Published: November 1, 2018 / Updated: November 1, 2018
Vulnerability identifier: #VU15671
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-16839
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libcurl
libcurl
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 integer overflow in processing the Curl_auth_create_plain_message name and password when handling malicious input. A remote unauthenticated attacker can send specially crafted SASL password data, trigger memory corruption and execute arbitrary code with elevated privileges. The affected function can be invoked using POP3(S), IMAP(S), or SMTP(S).
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update to version 7.62.0.