CVE-2017-17484
Published: 10 December 2017
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | Red Hat says this was possibly introduced by: https://ssl.icu-project.org/trac/changeset/40455/trunk/icu4c/source/common/ucnv_u8.cpp |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
icu Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(code not present)
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(code not present)
|
|
| zesty |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://ssl.icu-project.org/trac/changeset/40714 upstream: https://ssl.icu-project.org/trac/changeset/40715 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |