CVE-2016-6296

Publication date 25 July 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.

Status

Package Ubuntu Release Status
php7.0 16.04 LTS xenial
Fixed 7.0.8-0ubuntu0.16.04.2
15.10 wily Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
xmlrpc-epi 16.04 LTS xenial
Fixed 0.54.2-1.1ubuntu0.1
15.10 wily Ignored end of life
14.04 LTS trusty
Fixed 0.54.2-1+deb7u1ubuntu0.14.04.2
12.04 LTS precise
Fixed 0.54.2-1+deb7u1ubuntu0.12.04.1
php5 16.04 LTS xenial Not in release
15.10 wily Ignored end of life
14.04 LTS trusty
Fixed 5.5.9+dfsg-1ubuntu4.19
12.04 LTS precise
Fixed 5.3.10-1ubuntu3.24

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
php7.0
php5

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
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

References

Related Ubuntu Security Notices (USN)

Other references