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CVE-2017-11362

Published: 17 July 2017

In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7, ext/intl/msgformat/msgformat_parse.c does not restrict the locale length, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact within International Components for Unicode (ICU) for C/C++ via a long first argument to the msgfmt_parse_message function.

Notes

AuthorNote
seth-arnold
PHP team disputes this CVE's security relevance
mdeslaur
php5 looks to be affected by the issue also
reproducer doesn't work on any release

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty
Released (5.5.9+dfsg-1ubuntu4.22)
upstream Needed

xenial Does not exist

yakkety Does not exist

zesty Does not exist

php7.0
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (7.0.21)
xenial
Released (7.0.22-0ubuntu0.16.04.1)
yakkety Ignored
(end of life)
zesty
Released (7.0.22-0ubuntu0.17.04.1)
Patches:
upstream: http://git.php.net/?p=php-src.git;a=commit;h=95c4564f939c916538579ef63602a3cd31941c51

php7.1
Launchpad, Ubuntu, Debian
artful
Released (7.1.8-1ubuntu1)
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (7.1.7)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

Patches:

upstream: http://git.php.net/?p=php-src.git;a=commit;h=95c4564f939c916538579ef63602a3cd31941c51

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