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    CVE-2016-5126

    Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.

    Published:May 24, 2016
    Last Modified:Apr 12, 2025
    EPS:Jun 1, 2016
    EPSS Score:0.0017
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Oracle
    Product
    Linux
    Vendor
    Qemu
    Product
    Qemu
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Tus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Openstack
    Vendor
    Redhat
    Product
    Virtualization

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    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…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=a6b3167fa0e825aebb5a7cd8b437b6d41584a196
    http://rhn.redhat.com/errata/RHSA-2016-1606.html
    http://rhn.redhat.com/errata/RHSA-2016-1607.html
    http://rhn.redhat.com/errata/RHSA-2016-1653.html
    http://rhn.redhat.com/errata/RHSA-2016-1654.html
    http://rhn.redhat.com/errata/RHSA-2016-1655.html
    http://rhn.redhat.com/errata/RHSA-2016-1756.html
    http://rhn.redhat.com/errata/RHSA-2016-1763.html
    http://www.openwall.com/lists/oss-security/2016/05/30/6
    http://www.openwall.com/lists/oss-security/2016/05/30/7
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
    http://www.securityfocus.com/bid/90948
    http://www.ubuntu.com/usn/USN-3047-1
    http://www.ubuntu.com/usn/USN-3047-2
    https://bugzilla.redhat.com/show_bug.cgi?id=1340924
    https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
    https://lists.gnu.org/archive/html/qemu-block/2016-05/msg00779.html
    https://security.gentoo.org/glsa/201609-01
    http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=a6b3167fa0e825aebb5a7cd8b437b6d41584a196
    http://rhn.redhat.com/errata/RHSA-2016-1606.html
    http://rhn.redhat.com/errata/RHSA-2016-1607.html
    http://rhn.redhat.com/errata/RHSA-2016-1653.html
    http://rhn.redhat.com/errata/RHSA-2016-1654.html
    http://rhn.redhat.com/errata/RHSA-2016-1655.html
    http://rhn.redhat.com/errata/RHSA-2016-1756.html
    http://rhn.redhat.com/errata/RHSA-2016-1763.html
    http://www.openwall.com/lists/oss-security/2016/05/30/6
    http://www.openwall.com/lists/oss-security/2016/05/30/7
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
    http://www.securityfocus.com/bid/90948
    http://www.ubuntu.com/usn/USN-3047-1
    http://www.ubuntu.com/usn/USN-3047-2
    https://bugzilla.redhat.com/show_bug.cgi?id=1340924
    https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
    https://lists.gnu.org/archive/html/qemu-block/2016-05/msg00779.html
    https://security.gentoo.org/glsa/201609-01

    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