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    CVE-2015-6855

    hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.

    Published:Sep 9, 2015
    Last Modified:Apr 12, 2025
    EPS:Nov 6, 2015
    EPSS Score:0.04251
    CVSS Score:7.5

    Affected Products

    Vendor
    Arista
    Product
    Eos
    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Qemu
    Product
    Qemu
    Vendor
    Suse
    Product
    Linux Enterprise Desktop
    Vendor
    Suse
    Product
    Linux Enterprise Server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-369 Divide By Zero

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-2379 (CVSS 8.2) — On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS …
    CVE-2026-7473 (CVSS 6.9) — On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Ext…
    CVE-2025-8873 (CVSS 8.7) — On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the datap…
    CVE-2023-5502 (CVSS 8.2) — On affected platforms running Arista EOS with 802.1x authentication configured on the access/trunk ports, and …
    CVE-2024-27892 (CVSS 7.2) — Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should…
    CVE-2024-27890 (CVSS 7.2) — Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should…
    CVE-2024-27891 (CVSS 6.9) — On affected platforms running Arista EOS with MACsec and egress ACLs configured on the same interfaces, the AC…
    CVE-2024-6858 (CVSS 6.5) — In Arista’s EOS when in 802.1X mode, multi-auth unauthenticated hosts might be allowed access to a switch port…
    CVE-2025-7048 (CVSS 5.3) — On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the M…
    CVE-2025-8872 (CVSS 7.1) — On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFP…

    References

    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168602.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169327.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html
    http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html
    http://www.debian.org/security/2015/dsa-3361
    http://www.debian.org/security/2015/dsa-3362
    http://www.openwall.com/lists/oss-security/2015/09/10/1
    http://www.openwall.com/lists/oss-security/2015/09/10/2
    http://www.securityfocus.com/bid/76691
    http://www.ubuntu.com/usn/USN-2745-1
    https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02479.html
    https://security.gentoo.org/glsa/201602-01
    https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168602.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169327.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.html
    http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.html
    http://www.debian.org/security/2015/dsa-3361
    http://www.debian.org/security/2015/dsa-3362
    http://www.openwall.com/lists/oss-security/2015/09/10/1
    http://www.openwall.com/lists/oss-security/2015/09/10/2
    http://www.securityfocus.com/bid/76691
    http://www.ubuntu.com/usn/USN-2745-1
    https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02479.html
    https://security.gentoo.org/glsa/201602-01
    https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14

    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