CVE-2017-17484

NameCVE-2017-17484
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
icu (PTS)jessie (security), jessie52.1-8+deb8u7fixed
stretch (security), stretch57.1-6+deb9u2fixed
buster, sid60.2-6fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
icusource(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/

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