Stack-based buffer overflow in icu - CVE-2017-17484
Published: May 30, 2018
Vulnerability identifier: #VU13055
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-17484
CWE-ID: CWE-121
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 cause DoS condition on the target system.
The vulnerability exists due to stack-based buffer overflow when the ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion. A remote unauthenticated attacker can supply a specially crafted string, as demonstrated by ZNC, trigger memory corruption and cause the service to crash.
How to mitigate CVE-2017-17484
Update to the latest version.