CVE-2015-3281

Summary

CVECVE-2015-3281
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-07-06 15:59:06 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:P/I:N/A:N

Problem Types: CWE-119 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:L/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 14.10 All All All
Operating System Canonical Ubuntu Linux 15.04 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Haproxy Haproxy 1.5 dev All All
Application Haproxy Haproxy 1.5 dev0 All All
Application Haproxy Haproxy 1.5 dev1 All All
Application Haproxy Haproxy 1.5 dev10 All All
Application Haproxy Haproxy 1.5 dev11 All All
Application Haproxy Haproxy 1.5 dev12 All All
Application Haproxy Haproxy 1.5 dev13 All All
Application Haproxy Haproxy 1.5 dev14 All All
Application Haproxy Haproxy 1.5 dev15 All All
Application Haproxy Haproxy 1.5 dev16 All All
Application Haproxy Haproxy 1.5 dev17 All All
Application Haproxy Haproxy 1.5 dev18 All All
Application Haproxy Haproxy 1.5 dev19 All All
Application Haproxy Haproxy 1.5 dev2 All All
Application Haproxy Haproxy 1.5 dev3 All All
Application Haproxy Haproxy 1.5 dev4 All All
Application Haproxy Haproxy 1.5 dev5 All All
Application Haproxy Haproxy 1.5 dev6 All All
Application Haproxy Haproxy 1.5 dev7 All All
Application Haproxy Haproxy 1.5 dev8 All All
Application Haproxy Haproxy 1.5 dev9 All All
Application Haproxy Haproxy 1.5.0 All All All
Application Haproxy Haproxy 1.5.1 All All All
Application Haproxy Haproxy 1.5.10 All All All
Application Haproxy Haproxy 1.5.11 All All All
Application Haproxy Haproxy 1.5.12 All All All
Application Haproxy Haproxy 1.5.13 All All All
Application Haproxy Haproxy 1.5.2 All All All
Application Haproxy Haproxy 1.5.3 All All All
Application Haproxy Haproxy 1.5.4 All All All
Application Haproxy Haproxy 1.5.5 All All All
Application Haproxy Haproxy 1.5.6 All All All
Application Haproxy Haproxy 1.5.7 All All All
Application Haproxy Haproxy 1.5.8 All All All
Application Haproxy Haproxy 1.5.9 All All All
Application Haproxy Haproxy 1.6 dev0 All All
Operating System Opensuse Openstack Cloud 5 All All All
Operating System Opensuse Opensuse 13.2 All All All
Operating System Redhat Enterprise Linux Desktop 7.0 All All All
Operating System Redhat Enterprise Linux Server 7.0 All All All
Operating System Redhat Enterprise Linux Server Aus 7.3 All All All
Operating System Redhat Enterprise Linux Server Aus 7.4 All All All
Operating System Redhat Enterprise Linux Server Aus 7.6 All All All
Operating System Redhat Enterprise Linux Server Eus 7.1 All All All
Operating System Redhat Enterprise Linux Server Eus 7.2 All All All
Operating System Redhat Enterprise Linux Server Eus 7.3 All All All
Operating System Redhat Enterprise Linux Server Eus 7.4 All All All
Operating System Redhat Enterprise Linux Server Eus 7.5 All All All
Operating System Redhat Enterprise Linux Server Eus 7.6 All All All
Operating System Redhat Enterprise Linux Server Tus 7.3 All All All
Operating System Redhat Enterprise Linux Server Tus 7.6 All All All
Operating System Redhat Enterprise Linux Workstation 7.0 All All All
Operating System Suse Linux Enterprise High Availability Extension 12 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
git.haproxy.org Git - haproxy-1.5.git/commit af854a3a-2127-422b-91ae-364da2661108 git.haproxy.org
Debian -- Security Information -- DSA-3301-1 haproxy af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
[security-announce] openSUSE-SU-2015:1831-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
USN-2668-1: HAProxy vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Malformed Request af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
[security-announce] SUSE-SU-2015:1663-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
www.haproxy.org/news.html af854a3a-2127-422b-91ae-364da2661108 www.haproxy.org Patch, Vendor Advisory
git.haproxy.org Git - haproxy-1.5.git/commit MITRE git.haproxy.org
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
access.redhat.com | CVE-2015-3281 MITRE access.redhat.com
Bug 1239072 – CVE-2015-3281 haproxy: information leak in buffer_slow_realign() MITRE bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report