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    CVE-2018-17963

    qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.

    Published:May 21, 2018
    Last Modified:Nov 21, 2024
    EPS:Oct 9, 2018
    EPSS Score:0.02365
    CVSS Score:9.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Qemu
    Product
    Qemu
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openstack
    Vendor
    Redhat
    Product
    Rhev Manager
    Vendor
    Redhat
    Product
    Virtualization
    Vendor
    Redhat
    Product
    Virtualization Manager

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    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…
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    References

    http://www.openwall.com/lists/oss-security/2018/10/08/1
    https://access.redhat.com/errata/RHSA-2019:2166
    https://access.redhat.com/errata/RHSA-2019:2425
    https://access.redhat.com/errata/RHSA-2019:2553
    https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
    https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html
    https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html
    https://usn.ubuntu.com/3826-1/
    https://www.debian.org/security/2018/dsa-4338
    http://www.openwall.com/lists/oss-security/2018/10/08/1
    https://access.redhat.com/errata/RHSA-2019:2166
    https://access.redhat.com/errata/RHSA-2019:2425
    https://access.redhat.com/errata/RHSA-2019:2553
    https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
    https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.html
    https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.html
    https://usn.ubuntu.com/3826-1/
    https://www.debian.org/security/2018/dsa-4338

    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