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    CVE-2015-3281

    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.

    Published:Jul 6, 2015
    Last Modified:Apr 12, 2025
    EPS:Jul 6, 2015
    EPSS Score:0.00094
    CVSS Score:5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Haproxy
    Product
    Haproxy
    Vendor
    Opensuse
    Product
    Openstack Cloud
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Tus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Suse
    Product
    Linux Enterprise High Availability Extension

    Exploits

    No exploit reference

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    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
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    References

    http://git.haproxy.org/?p=haproxy-1.5.git%3Ba=commit%3Bh=7ec765568883b2d4e5a2796adbeb492a22ec9bd4
    http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00023.html
    http://rhn.redhat.com/errata/RHSA-2015-1741.html
    http://rhn.redhat.com/errata/RHSA-2015-2666.html
    http://www.debian.org/security/2015/dsa-3301
    http://www.haproxy.org/news.html
    http://www.securityfocus.com/bid/75554
    http://www.ubuntu.com/usn/USN-2668-1
    http://git.haproxy.org/?p=haproxy-1.5.git%3Ba=commit%3Bh=7ec765568883b2d4e5a2796adbeb492a22ec9bd4
    http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00023.html
    http://rhn.redhat.com/errata/RHSA-2015-1741.html
    http://rhn.redhat.com/errata/RHSA-2015-2666.html
    http://www.debian.org/security/2015/dsa-3301
    http://www.haproxy.org/news.html
    http://www.securityfocus.com/bid/75554
    http://www.ubuntu.com/usn/USN-2668-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High