The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:0831 advisory.

    The kernel-alt packages provide the Linux kernel version 4.x.

    Security Fix(es):

    * kernel: lack of check for mmap minimum address in expand_downwards in mm/mmap.c leads to NULL pointer     dereferences exploit on non-SMAP platforms (CVE-2019-9213)

    * kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c (CVE-2018-14734)

    * kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks (CVE-2018-17972)

    * kernel: TLB flush happens too late on mremap (CVE-2018-18281)

    * kernel: Type confusion in drivers/tty/n_tty.c allows for a denial of service (CVE-2018-18386)

    * kernel: userfaultfd bypasses tmpfs file permissions (CVE-2018-18397)

    * kernel: Integer overflow in the alarm_timer_nsleep function (CVE-2018-13053)

    * kernel: NULL pointer dereference in xfs_da_shrink_inode function (CVE-2018-13094)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Failed to boot with ftrace=function in kvm with 2vcpu (BZ#1501024)

    * [ALT-7.5][x86_64] perf test 63 - inet_pton fails on x86_64 (BZ#1518836)

    * BUG: potential out-of-bounds string access when forcing a SELinux label on a file (BZ#1595706)

    * stack out-of-bounds in smb{2,3}_create_lease_buf() on SMB2/SMB3 mounts (BZ#1598757)

    * [ALT-7.6][KVM][PANIC] ltp/lite proc01 - Unable to handle kernel paging request at virtual address     ffff7fe000200018 (BZ#1623193)

    * Kernel lock up due to read/write lock (BZ#1636261)

    * [RHEL-ALT] Fix potential Spectre v1 in tty code (BZ#1639679)

    * [Huawei AArch64 7.6 Bug] HNS3: Vlan on HNS3 NIC cannot communicate (BZ#1639713)

    * [RHEL7.6-ALT][AWS] backport nvme: update timeout module parameter type (BZ#1654958)

    * ignore STABLE_FLAG of rmap_item->address in rmap_walk_ksm (BZ#1663565)

    * RHEL-Alt-7.6 - kernel: zcrypt: fix specification exception on z196 at ap probe (BZ#1670018)

    * [Huawei AArch64 7.6 Bug] Flock over NFSv3 failed (BZ#1670650)

    * [Huawei AArch64 7.6/7.6-z Bug] HNS3: if a single transmit packet(skb) has more than 8 frags, will cause     the NIC to be unavailable (BZ#1677643)

    * krb5{,i,p} doesn't work with older enctypes on aarch64 (BZ#1678922)

    Users of kernel are advised to upgrade to these updated packages, which fix these bugs.

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.

Detections

Analytics

RHEL 7 : kernel-alt (RHSA-2019:0831)

high Nessus Plugin ID 124257

Version 1.12

Version 1.11

Version 1.10

Version 1.9

Version 1.8

Version 1.12 Nov 7, 2024, 2:42 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411070242
Version 1.11 Nov 5, 2024, 12:50 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411051250
Version 1.10 Apr 28, 2024, 3:17 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202404280317
Version 1.9 Feb 7, 2024, 10:01 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202402072201
Version 1.8 Jan 18, 2024, 8:01 PM CVSSv2 score source (set to "CVE-2018-14734") CVSSv3 score source (set to "CVE-2018-18281") Detection (updated detection logic) Plugin metadata Reference Plugin Feed: 202401182001