Vulnerability Description
The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Icu-Project | International Components For Unicode | <= 60.1 |
Related Weaknesses (CWE)
References
- https://github.com/znc/znc/issues/1459Issue TrackingThird Party Advisory
- https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cppExploitVendor Advisory
- https://ssl.icu-project.org/trac/changeset/40714Issue TrackingPatchVendor Advisory
- https://ssl.icu-project.org/trac/changeset/40715Issue TrackingVendor Advisory
- https://ssl.icu-project.org/trac/ticket/13490Issue TrackingVendor Advisory
- https://ssl.icu-project.org/trac/ticket/13510Issue TrackingVendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://github.com/znc/znc/issues/1459Issue TrackingThird Party Advisory
- https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cppExploitVendor Advisory
- https://ssl.icu-project.org/trac/changeset/40714Issue TrackingPatchVendor Advisory
- https://ssl.icu-project.org/trac/changeset/40715Issue TrackingVendor Advisory
- https://ssl.icu-project.org/trac/ticket/13490Issue TrackingVendor Advisory
- https://ssl.icu-project.org/trac/ticket/13510Issue TrackingVendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
FAQ
What is CVE-2017-17484?
CVE-2017-17484 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote at...
How severe is CVE-2017-17484?
CVE-2017-17484 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-17484?
Check the references section above for vendor advisories and patch information. Affected products include: Icu-Project International Components For Unicode.