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CVE-2015-8879

Published: 22 May 2016

The odbc_bindcols function in ext/odbc/php_odbc.c in PHP before 5.6.12 mishandles driver behavior for SQL_WVARCHAR columns, which allows remote attackers to cause a denial of service (application crash) in opportunistic circumstances by leveraging use of the odbc_fetch_array function to access a certain type of Microsoft SQL Server table.

Notes

AuthorNote
tyhicks
This issue is specific to php5 being used with the Microsoft SQL ODBC
driver
mdeslaur
this will not be fixed in Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.

Priority

Negligible

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
precise Ignored

trusty Ignored

upstream
Released (5.6.12)
wily Ignored

xenial Does not exist

Patches:
upstream: http://git.php.net/?p=php-src.git;a=commit;h=16db4d1462bf3eacb93c0cd940f799160a284b24
upstream: http://git.php.net/?p=php-src.git;a=commit;h=344ff5dd4c538eaebea075f7705321f8b86d0b47

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H