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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00094.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 2 [-]

OR cpe:2.3:a:haproxy:haproxy:1.5:dev:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev0:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev1:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev10:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev11:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev12:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev13:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev14:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev15:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev16:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev17:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev18:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev19:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev2:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev3:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev4:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev5:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev6:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev7:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev8:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5:dev9:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.4:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.5:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.7:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.8:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.9:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.10:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.11:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.12:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.5.13:*:*:*:*:*:*:*
cpe:2.3:a:haproxy:haproxy:1.6:dev0:*:*:*:*:*:*

Configuration 3 [-]

OR cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*

Configuration 4 [-]

OR cpe:2.3:o:opensuse:openstack_cloud:5:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_high_availability_extension:12:*:*:*:*:*:*:*

Configuration 5 [-]

OR cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Enterprise Linux 6
haproxy-0:1.5.4-2.el6_7.1 cpe:/o:redhat:enterprise_linux:6 RHSA-2015:1741 2015-09-08T00:00:00Z
Red Hat Enterprise Linux 7
haproxy-0:1.5.4-4.el7_1.1 cpe:/o:redhat:enterprise_linux:7 RHSA-2015:1741 2015-09-08T00:00:00Z
Red Hat OpenShift Enterprise 2.2
haproxy15side-0:1.5.4-2.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-enterprise-upgrade-0:2.2.8-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-origin-broker-util-0:1.37.4.2-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-origin-cartridge-haproxy-0:1.31.4.1-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-origin-cartridge-jbosseap-0:2.27.3.1-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-origin-cartridge-jbossews-0:1.35.3.2-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-origin-cartridge-python-0:1.34.1.1-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
openshift-origin-node-util-0:1.38.5.1-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
rhc-0:1.38.4.5-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
rubygem-openshift-origin-common-0:1.29.4.1-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
rubygem-openshift-origin-controller-0:1.38.4.2-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
rubygem-openshift-origin-node-0:1.38.4.1-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z
rubygem-openshift-origin-routing-daemon-0:0.26.4.4-1.el6op cpe:/a:redhat:openshift:2.0::el6 RHSA-2015:2666 2015-12-17T00:00:00Z

No data.

Project Subscriptions

Vendors Products
Canonical Subscribe
Ubuntu Linux Subscribe
Debian Subscribe
Debian Linux Subscribe
Haproxy Subscribe
Haproxy Subscribe
Opensuse Subscribe
Openstack Cloud Subscribe
Opensuse Subscribe
Redhat Subscribe
Enterprise Linux Subscribe
Enterprise Linux Desktop Subscribe
Enterprise Linux Server Subscribe
Enterprise Linux Server Aus Subscribe
Enterprise Linux Server Eus Subscribe
Enterprise Linux Server Tus Subscribe
Enterprise Linux Workstation Subscribe
Openshift Subscribe
Suse Subscribe
Linux Enterprise High Availability Extension Subscribe
Advisories
Source ID Title
Debian DSA Debian DSA DSA-3301-1 haproxy security update
EUVD EUVD EUVD-2015-3328 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.
Ubuntu USN Ubuntu USN USN-2668-1 HAProxy vulnerability
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://git.haproxy.org/?p=haproxy-1.5.git%3Ba=commit%3Bh=7ec765568883b2d4e5a2796adbeb492a22ec9bd4 cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00001.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00023.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2015-1741.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2015-2666.html cve-icon cve-icon
http://www.debian.org/security/2015/dsa-3301 cve-icon cve-icon
http://www.haproxy.org/news.html cve-icon cve-icon
http://www.securityfocus.com/bid/75554 cve-icon cve-icon
http://www.ubuntu.com/usn/USN-2668-1 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2015-3281 cve-icon
https://www.cve.org/CVERecord?id=CVE-2015-3281 cve-icon
History

No history.

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T05:39:32.116Z

Reserved: 2015-04-10T00:00:00

Link: CVE-2015-3281

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2015-07-06T15:59:06.167

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-3281

cve-icon Redhat

Severity : Important

Publid Date: 2015-07-07T00:00:00Z

Links: CVE-2015-3281 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses