9.8crit
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_convertE…
Published 8 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.5%
percentile 92%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
4.48% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- ssl.icu-project.org /trac/ticket/13490 · x_refsource_MISC, x_transferred
- ssl.icu-project.org /trac/changeset/40714 · x_refsource_MISC, x_transferred
- github.com /znc/znc/issues/1459 · x_refsource_MISC, x_transferred
- ssl.icu-project.org /trac/attachment/ticket/13490/poc.cpp · x_refsource_MISC, x_transferred
- ssl.icu-project.org /trac/ticket/13510 · x_refsource_MISC, x_transferred
- ssl.icu-project.org /trac/changeset/40715 · x_refsource_MISC, x_transferred
- oracle.com /technetwork/security-advisory/cpuapr2019-5072813.html · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2017-17484
- NVD: CVE-2017-17484
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