CVE-2015-3281 Information disclosure in n/a

Medium 5.0 Published 6 Jul 2015 Updated 6 Aug 2024

Remote attackers can obtain sensitive uninitialized memory contents from previous requests via a crafted request in HAProxy.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2015-3281?

CVE-2015-3281 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 6 Jul 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.

Weakness: CWE-119

Which versions are affected by CVE-2015-3281?

It affects 12 products.

Linux distribution packages (25)

`haproxy` Red Hat:enterprise_linux:6::server	All versions	`0:1.5.4-2.el6_7.1`
`haproxy-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:1.5.4-2.el6_7.1`
`haproxy` Red Hat:enterprise_linux:7::server	All versions	`0:1.5.4-4.el7_1.1`
`haproxy-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:1.5.4-4.el7_1.1`
`haproxy` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.5.4-4.el7_1.1`
`haproxy-debuginfo` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.5.4-4.el7_1.1`
`haproxy15side` Red Hat:openshift:2.0::el6	All versions	`0:1.5.4-2.el6op`
`haproxy15side-debuginfo` Red Hat:openshift:2.0::el6	All versions	`0:1.5.4-2.el6op`
`openshift-enterprise-release` Red Hat:openshift:2.0::el6	All versions	`0:2.2.8-1.el6op`
`openshift-enterprise-upgrade` Red Hat:openshift:2.0::el6	All versions	`0:2.2.8-1.el6op`
`openshift-enterprise-upgrade-broker` Red Hat:openshift:2.0::el6	All versions	`0:2.2.8-1.el6op`
`openshift-enterprise-upgrade-node` Red Hat:openshift:2.0::el6	All versions	`0:2.2.8-1.el6op`
`openshift-enterprise-yum-validator` Red Hat:openshift:2.0::el6	All versions	`0:2.2.8-1.el6op`
`openshift-origin-broker-util` Red Hat:openshift:2.0::el6	All versions	`0:1.37.4.2-1.el6op`
`openshift-origin-cartridge-haproxy` Red Hat:openshift:2.0::el6	All versions	`0:1.31.4.1-1.el6op`
`openshift-origin-cartridge-jbosseap` Red Hat:openshift:2.0::el6	All versions	`0:2.27.3.1-1.el6op`
`openshift-origin-cartridge-jbossews` Red Hat:openshift:2.0::el6	All versions	`0:1.35.3.2-1.el6op`
`openshift-origin-cartridge-python` Red Hat:openshift:2.0::el6	All versions	`0:1.34.1.1-1.el6op`
`openshift-origin-node-util` Red Hat:openshift:2.0::el6	All versions	`0:1.38.5.1-1.el6op`
`rhc` Red Hat:openshift:2.0::el6	All versions	`0:1.38.4.5-1.el6op`
`rubygem-openshift-origin-common` Red Hat:openshift:2.0::el6	All versions	`0:1.29.4.1-1.el6op`
`rubygem-openshift-origin-controller` Red Hat:openshift:2.0::el6	All versions	`0:1.38.4.2-1.el6op`
`rubygem-openshift-origin-node` Red Hat:openshift:2.0::el6	All versions	`0:1.38.4.1-1.el6op`
`rubygem-openshift-origin-routing-daemon` Red Hat:openshift:2.0::el6	All versions	`0:0.26.4.4-1.el6op`
`haproxy` SUSE:OpenStack Cloud 5	All versions	`1.5.4-12.1`

Products include Canonical Ubuntu Linux, Debian Debian Linux, Haproxy Haproxy, Opensuse Openstack Cloud, Opensuse Opensuse, Redhat Enterprise Linux Desktop and 6 more.

How do I fix CVE-2015-3281?

Upgrade to a fixed version.

Is CVE-2015-3281 being exploited?

There is no known exploitation of CVE-2015-3281 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-3281, DSA-3301-1, GHSA-ffg4-hmhr-qr79, RHSA-2015:1741, RHSA-2015:2666, SUSE-SU-2015:1776-1.