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CVE-2017-17484

Published: Dec 10, 2017Updated: May 13, 2026 Sources: CVE List NVDCWE-119
9.8CRITICAL
NVD MITRE
EPSS Score
4.6%
Top 9.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-119

Affected Products

n/an/a
international components for unicodeicu-project
Library
OSS Libraries / generic-library
icu-projectoss-projectOSS Librariesaka international components for unicode

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
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References

https://ssl.icu-project.org/trac/ticket/13490
ssl.icu-project.org
https://ssl.icu-project.org/trac/changeset/40714
ssl.icu-project.org
https://github.com/znc/znc/issues/1459
github.com
and 4 more references View all →

Timeline

Published
Dec 10, 2017
Last Updated
May 13, 2026

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