CVE-2017-17484

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 v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/znc/znc/issues/1459	Issue Tracking Third Party Advisory
https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp	Exploit Vendor Advisory
https://ssl.icu-project.org/trac/changeset/40714	Issue Tracking Patch Vendor Advisory
https://ssl.icu-project.org/trac/changeset/40715	Issue Tracking Vendor Advisory
https://ssl.icu-project.org/trac/ticket/13490	Issue Tracking Vendor Advisory
https://ssl.icu-project.org/trac/ticket/13510	Issue Tracking Vendor Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*

History

No history.

Information

Published : 2017-12-10 20:29

Updated : 2023-12-10 12:15

NVD link : CVE-2017-17484

Mitre link : CVE-2017-17484

CVE.ORG link : CVE-2017-17484

JSON object : View

Products Affected

icu-project

international_components_for_unicode

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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