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CVE-2016-4541

Published: 6 May 2016

The grapheme_strpos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.

Notes

AuthorNote
sbeattie
Fixed in 7.0.6, 5.6.21, 5.5.35
mdeslaur
same commit as CVE-2016-4540

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
precise
Released (5.3.10-1ubuntu3.23)
trusty
Released (5.5.9+dfsg-1ubuntu4.17)
upstream
Released (5.6.21+dfsg-1)
wily
Released (5.6.11+dfsg-1ubuntu3.4)
xenial Does not exist

Patches:
upstream: https://git.php.net/?p=php-src.git;a=commit;h=fd9689745c44341b1bd6af4756f324be8abba2fb

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

trusty Does not exist

upstream
Released (7.0.6-1)
wily Does not exist

xenial
Released (7.0.4-7ubuntu2.1)
Patches:

upstream: https://git.php.net/?p=php-src.git;a=commit;h=fd9689745c44341b1bd6af4756f324be8abba2fb

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