The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:0102 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    * A flaw was found in the way the Linux kernel's SCTP implementation     validated INIT chunks when performing Address Configuration Change     (ASCONF). A remote attacker could use this flaw to crash the system by     sending a specially crafted SCTP packet to trigger a NULL pointer     dereference on the system. (CVE-2014-7841, Important)

    * A race condition flaw was found in the way the Linux kernel's mmap(2),     madvise(2), and fallocate(2) system calls interacted with each other while     operating on virtual memory file system files. A local user could use this     flaw to cause a denial of service. (CVE-2014-4171, Moderate)

    * A NULL pointer dereference flaw was found in the way the Linux kernel's     Common Internet File System (CIFS) implementation handled mounting of file     system shares. A remote attacker could use this flaw to crash a client     system that would mount a file system share from a malicious server.
    (CVE-2014-7145, Moderate)

    * A flaw was found in the way the Linux kernel's splice() system call     validated its parameters. On certain file systems, a local, unprivileged     user could use this flaw to write past the maximum file size, and thus     crash the system. (CVE-2014-7822, Moderate)

    * It was found that the parse_rock_ridge_inode_internal() function of the     Linux kernel's ISOFS implementation did not correctly check relocated     directories when processing Rock Ridge child link (CL) tags. An attacker     with physical access to the system could use a specially crafted ISO image     to crash the system or, potentially, escalate their privileges on the     system. (CVE-2014-5471, CVE-2014-5472, Low)

    Red Hat would like to thank Akira Fujita of NEC for reporting the     CVE-2014-7822 issue. The CVE-2014-7841 issue was discovered by Liu Wei of     Red Hat.

    This update also fixes the following bugs:

    * Previously, a kernel panic could occur if a process reading from a locked     NFS file was killed and the lock was not released properly before the read     operations finished. Consequently, the system crashed. The code handling     file locks has been fixed, and instead of halting, the system now emits a     warning about the unreleased lock. (BZ#1172266)

    * A race condition in the command abort handling logic of the ipr device     driver could cause the kernel to panic when the driver received a response     to an abort command prior to receiving other responses to the aborted     command due to the support for multiple interrupts. With this update, the     abort handler waits for the aborted command's responses first before     completing an abort operation. (BZ#1162734)

    * Previously, a race condition could occur when changing a Page Table Entry     (PTE) or a Page Middle Directory (PMD) to pte_numa or pmd_numa,     respectively, causing the kernel to crash. This update removes the BUG_ON()     macro from the __handle_mm_fault() function, preventing the kernel panic in     the aforementioned scenario. (BZ#1170662)

    All kernel users are advised to upgrade to these updated packages, which     contain backported patches to correct these issues. The system must be     rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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RHEL 7 : kernel (RHSA-2015:0102)

medium Nessus Plugin ID 81070

Version 1.19