Out-of-bounds read in libcurl - CVE-2017-8817
Published: November 30, 2017
Vulnerability identifier: #VU9459
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-8817
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: curl.haxx.se
Affected software:
libcurl
libcurl
Detailed vulnerability description
The vulnerability allows a remote attacker to redirect the target client to an arbitrary site.
The vulnerability exists due to out-of-bounds read in the FTP wildcard function (CURLOPT_WILDCARDMATCH). A remote unauthenticated attacker can use a string that ends with an '[' character, trigger out-of-bounds read and cause the target connected libcurl client to be redirected.
How to mitigate CVE-2017-8817
Update to version 7.57.0.