Home/CVE/The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 misha
CVE

CVE-2017-17484

The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 misha

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.

CRITICAL · CVSS 9.8 EPSS 0.04473
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

1
icu-project international components for unicode<= 60.1
⚠

Public Exploits & PoCs

1
pocssl.icu-project.org · poc.cppssl.icu-project.org
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Dec 2017 · 08:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

3
suse-csafSUSE-SU-2018:1401-2
suse-csafSUSE-SU-2018:1602-1
suse-csafSUSE-SU-2018:1401-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/znc/znc/issues/1459Issue TrackingThird Party 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
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