| Name | CVE-2017-17484 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| icu (PTS) | jessie, jessie (lts) | 52.1-8+deb8u9 | fixed |
| stretch (security), stretch (lts), stretch | 57.1-6+deb9u5 | fixed |
| buster | 63.1-6+deb10u3 | fixed |
| buster (security), buster (lts) | 63.1-6+deb10u2 | fixed |
| bullseye | 67.1-7 | fixed |
| bookworm | 72.1-3 | fixed |
| sid, trixie | 72.1-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| icu | source | (unstable) | (not affected) | | | |
Notes
- icu <not-affected> (Vulnerable code not present, only experimental was ever affected and fixed in 60.2-1)
https://ssl.icu-project.org/trac/ticket/13510
https://ssl.icu-project.org/trac/ticket/13490
Fixed by: https://ssl.icu-project.org/trac/changeset/40714
Testcase: https://ssl.icu-project.org/trac/changeset/40715
POC: https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.2.cpp
Introduced by https://ssl.icu-project.org/trac/changeset/40455/