Ubuntu.comUB:CVE-2017-17484CVE-2017-17484
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
91.3%
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.
Bugs
- <https://ssl.icu-project.org/trac/ticket/13510>
- <https://ssl.icu-project.org/trac/ticket/13490>
- <https://github.com/znc/znc/issues/1459>
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 |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
91.3%