medium
5
CWE
119
Advisory Published
Updated

CVE-2015-3281: Buffer Overflow

First published: Mon Jul 06 2015(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Debian=8.0
HAProxy=1.5-dev
HAProxy=1.5-dev0
HAProxy=1.5-dev1
HAProxy=1.5-dev10
HAProxy=1.5-dev11
HAProxy=1.5-dev12
HAProxy=1.5-dev13
HAProxy=1.5-dev14
HAProxy=1.5-dev15
HAProxy=1.5-dev16
HAProxy=1.5-dev17
HAProxy=1.5-dev18
HAProxy=1.5-dev19
HAProxy=1.5-dev2
HAProxy=1.5-dev3
HAProxy=1.5-dev4
HAProxy=1.5-dev5
HAProxy=1.5-dev6
HAProxy=1.5-dev7
HAProxy=1.5-dev8
HAProxy=1.5-dev9
HAProxy=1.5.0
HAProxy=1.5.1
HAProxy=1.5.2
HAProxy=1.5.3
HAProxy=1.5.4
HAProxy=1.5.5
HAProxy=1.5.6
HAProxy=1.5.7
HAProxy=1.5.8
HAProxy=1.5.9
HAProxy=1.5.10
HAProxy=1.5.11
HAProxy=1.5.12
HAProxy=1.5.13
HAProxy=1.6-dev0
Ubuntu=14.10
Ubuntu=15.04
SUSE Linux Enterprise High Availability Extension=12
SUSE OpenStack Cloud=5
SUSE Linux=13.2
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.1
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Workstation=7.0
SUSE Linux Enterprise High Availability=12

Remedy

http://www.haproxy.org/news.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-3281?

    CVE-2015-3281 has been classified as having a medium severity due to potential unauthorized access to sensitive information.

  • How do I fix CVE-2015-3281?

    To fix CVE-2015-3281, upgrade HAProxy to version 1.5.14 or later.

  • What types of attacks can exploit CVE-2015-3281?

    CVE-2015-3281 can be exploited by remote attackers sending crafted requests that leverage uninitialized memory access.

  • Which versions of HAProxy are affected by CVE-2015-3281?

    HAProxy versions 1.5.x before 1.5.14 and 1.6-dev prior to the patch are affected by CVE-2015-3281.

  • What kind of data is at risk due to CVE-2015-3281?

    CVE-2015-3281 can expose uninitialized memory contents from previous requests, posing a risk of sensitive information disclosure.

Company

Resources

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