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CVE-2016-6293

Published: 25 July 2016

The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument.

Notes

AuthorNote
mdeslaur
see php's CVE-2016-6294

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
icu
Launchpad, Ubuntu, Debian
precise
Released (4.8.1.1-3ubuntu0.7)
trusty
Released (52.1-3ubuntu0.5)
upstream
Released (57.1-4)
wily Ignored
(end of life)
xenial
Released (55.1-7ubuntu0.1)
yakkety Not vulnerable
(57.1-4)
zesty Not vulnerable
(57.1-4)
Patches:
upstream: https://ssl.icu-project.org/trac/changeset/39109

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