Heap-based buffer overflow in icu - CVE-2017-7867
Published: July 18, 2017 / Updated: May 30, 2018
Vulnerability identifier: #VU7568
CSH Severity: High
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:Amber
CVE-ID: CVE-2017-7867
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ICU - International Components for Unicode
Affected software:
icu
icu
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error in utf8TextAccess() function in common/utext.cpp and the utext_moveIndex32* function in International Components for Unicode (ICU) for C/C++ before 2017-02-13. A remote unauthenticated attacker can 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.
How to mitigate CVE-2017-7867
Install update from vendor's website.