NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C. This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001581 advisory.

    NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer     Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C.

    This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004522 advisory.

    NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer     Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C.

    This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004129 advisory.

    NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer     Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C.

    This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer     Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C. This issue affects     openEuler kernel: from 4.19.90 before 4.19.90-2401.3. (CVE-2021-33630)

Note that Nessus relies on the presence of the package as reported by the vendor.

An update of the linux package has been released.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3840 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3840-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     June 25, 2024                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux     Version        : 4.19.316-1     CVE ID         : CVE-2021-33630 CVE-2022-48627 CVE-2023-0386 CVE-2023-6040                      CVE-2023-6270 CVE-2023-7042 CVE-2023-46838 CVE-2023-47233                      CVE-2023-52340 CVE-2023-52429 CVE-2023-52436 CVE-2023-52439                      CVE-2023-52443 CVE-2023-52444 CVE-2023-52445 CVE-2023-52449                      CVE-2023-52464 CVE-2023-52469 CVE-2023-52470 CVE-2023-52486                      CVE-2023-52583 CVE-2023-52587 CVE-2023-52594 CVE-2023-52599                      CVE-2023-52600 CVE-2023-52601 CVE-2023-52602 CVE-2023-52603                      CVE-2023-52604 CVE-2023-52609 CVE-2023-52612 CVE-2023-52615                      CVE-2023-52619 CVE-2023-52620 CVE-2023-52622 CVE-2023-52623                      CVE-2023-52628 CVE-2023-52644 CVE-2023-52650 CVE-2023-52670                      CVE-2023-52679 CVE-2023-52683 CVE-2023-52691 CVE-2023-52693                      CVE-2023-52698 CVE-2023-52699 CVE-2023-52880 CVE-2024-0340                      CVE-2024-0607 CVE-2024-1086 CVE-2024-22099 CVE-2024-23849                      CVE-2024-23851 CVE-2024-24857 CVE-2024-24858 CVE-2024-24861                      CVE-2024-25739 CVE-2024-26597 CVE-2024-26600 CVE-2024-26602                      CVE-2024-26606 CVE-2024-26615 CVE-2024-26625 CVE-2024-26633                      CVE-2024-26635 CVE-2024-26636 CVE-2024-26642 CVE-2024-26645                      CVE-2024-26651 CVE-2024-26663 CVE-2024-26664 CVE-2024-26671                      CVE-2024-26675 CVE-2024-26679 CVE-2024-26685 CVE-2024-26696                      CVE-2024-26697 CVE-2024-26704 CVE-2024-26720 CVE-2024-26722                      CVE-2024-26735 CVE-2024-26744 CVE-2024-26752 CVE-2024-26754                      CVE-2024-26763 CVE-2024-26764 CVE-2024-26766 CVE-2024-26772                      CVE-2024-26773 CVE-2024-26777 CVE-2024-26778 CVE-2024-26779                      CVE-2024-26791 CVE-2024-26793 CVE-2024-26801 CVE-2024-26805                      CVE-2024-26816 CVE-2024-26817 CVE-2024-26820 CVE-2024-26825                      CVE-2024-26839 CVE-2024-26840 CVE-2024-26845 CVE-2024-26851                      CVE-2024-26852 CVE-2024-26857 CVE-2024-26859 CVE-2024-26863                      CVE-2024-26874 CVE-2024-26875 CVE-2024-26878 CVE-2024-26880                      CVE-2024-26883 CVE-2024-26884 CVE-2024-26889 CVE-2024-26894                      CVE-2024-26898 CVE-2024-26901 CVE-2024-26903 CVE-2024-26917                      CVE-2024-26922 CVE-2024-26923 CVE-2024-26931 CVE-2024-26934                      CVE-2024-26955 CVE-2024-26956 CVE-2024-26965 CVE-2024-26966                      CVE-2024-26969 CVE-2024-26973 CVE-2024-26974 CVE-2024-26976                      CVE-2024-26981 CVE-2024-26984 CVE-2024-26993 CVE-2024-26994                      CVE-2024-26997 CVE-2024-27001 CVE-2024-27008 CVE-2024-27013                      CVE-2024-27020 CVE-2024-27024 CVE-2024-27028 CVE-2024-27043                      CVE-2024-27046 CVE-2024-27059 CVE-2024-27074 CVE-2024-27075                      CVE-2024-27077 CVE-2024-27078 CVE-2024-27388 CVE-2024-27395                      CVE-2024-27396 CVE-2024-27398 CVE-2024-27399 CVE-2024-27401                      CVE-2024-27405 CVE-2024-27410 CVE-2024-27412 CVE-2024-27413                      CVE-2024-27416 CVE-2024-27419 CVE-2024-27436 CVE-2024-31076                      CVE-2024-33621 CVE-2024-35789 CVE-2024-35806 CVE-2024-35807                      CVE-2024-35809 CVE-2024-35811 CVE-2024-35815 CVE-2024-35819                      CVE-2024-35821 CVE-2024-35822 CVE-2024-35823 CVE-2024-35825                      CVE-2024-35828 CVE-2024-35830 CVE-2024-35835 CVE-2024-35847                      CVE-2024-35849 CVE-2024-35877 CVE-2024-35886 CVE-2024-35888                      CVE-2024-35893 CVE-2024-35898 CVE-2024-35902 CVE-2024-35910                      CVE-2024-35915 CVE-2024-35922 CVE-2024-35925 CVE-2024-35930                      CVE-2024-35933 CVE-2024-35935 CVE-2024-35936 CVE-2024-35944                      CVE-2024-35947 CVE-2024-35955 CVE-2024-35960 CVE-2024-35969                      CVE-2024-35973 CVE-2024-35978 CVE-2024-35982 CVE-2024-35984                      CVE-2024-35997 CVE-2024-36004 CVE-2024-36014 CVE-2024-36015                      CVE-2024-36016 CVE-2024-36017 CVE-2024-36020 CVE-2024-36286                      CVE-2024-36288 CVE-2024-36883 CVE-2024-36886 CVE-2024-36902                      CVE-2024-36904 CVE-2024-36905 CVE-2024-36919 CVE-2024-36933                      CVE-2024-36934 CVE-2024-36940 CVE-2024-36941 CVE-2024-36946                      CVE-2024-36950 CVE-2024-36954 CVE-2024-36959 CVE-2024-36960                      CVE-2024-36964 CVE-2024-36971 CVE-2024-37353 CVE-2024-37356                      CVE-2024-38381 CVE-2024-38549 CVE-2024-38552 CVE-2024-38558                      CVE-2024-38559 CVE-2024-38560 CVE-2024-38565 CVE-2024-38567                      CVE-2024-38578 CVE-2024-38579 CVE-2024-38582 CVE-2024-38583                      CVE-2024-38587 CVE-2024-38589 CVE-2024-38596 CVE-2024-38598                      CVE-2024-38599 CVE-2024-38601 CVE-2024-38612 CVE-2024-38618                      CVE-2024-38621 CVE-2024-38627 CVE-2024-38633 CVE-2024-38634                      CVE-2024-38637 CVE-2024-38659 CVE-2024-38780 CVE-2024-39292

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For Debian 10 buster, these problems have been fixed in version     4.19.316-1.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1567 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768)

    * kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

    * kernel: memory leak in the kernel_read_file function in fs/exec.c allows to cause a denial of service     (CVE-2019-8980)

    * kernel: unprivileged users able to create RAW sockets  in AF_IEEE802154 network protocol.
    (CVE-2019-17053)

    * kernel: unprivileged users able to create RAW sockets in AF_ISDN  network protocol. (CVE-2019-17055)

    * kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c (CVE-2019-18805)

    * kernel: information leak bug caused  by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (CVE-2019-19534)

    * kernel: some ipv6 protocols not encrypted over ipsec tunnel. (CVE-2020-1749)

    * Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR     (CVE-2019-10639)

    * kernel: An out-of-bounds read in drivers/scsi/qedi/qedi_dbg.c leading to crash or information disclosure     (CVE-2019-15090)

    * kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash     (CVE-2019-15099)

    * kernel: Null pointer dereference in the sound/usb/line6/pcm.c (CVE-2019-15221)

    * kernel: Two memory leaks in the mwifiex_pcie_init_evt_ring() function in     drivers/net/wireless/marvell/mwifiex/pcie.c allows for a DoS (CVE-2019-19057)

    * kernel: Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c in the Linux kernel (DOS)     (CVE-2019-19073)

    * kernel: a memory leak in the ath9k management function in allows local DoS (CVE-2019-19074)

    * kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-     bound applications (CVE-2019-19922)

    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):

    * RT: update RT source tree to the RHEL-8.2 tree (BZ#1708716)

    * KVM-RT guest fails boot with emulatorsched (BZ#1712781)

    * 8 vCPU guest need max latency < 20 us with stress [RT-8.2] (BZ#1757165)

    * Request nx_huge_pages=N as default value to avoid kvm-rt guest large latency spike [rt-8] (BZ#1788352)

    * RT: Add rpm Provide of 'kernel' to indicate that this is a kernel package (BZ#1796284)

    * [RHEL8] RT kernel signed by test certificate and not Red Hat Secure Boot (BZ#1806871)

    Enhancement(s):

    * update to the upstream 5.x RT patchset (BZ#1680161)

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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1769 advisory.

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

    Security Fix(es):

    * kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768)

    * kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

    * kernel: memory leak in the kernel_read_file function in fs/exec.c allows to cause a denial of service     (CVE-2019-8980)

    * kernel: unprivileged users able to create RAW sockets  in AF_IEEE802154 network protocol.
    (CVE-2019-17053)

    * kernel: unprivileged users able to create RAW sockets in AF_ISDN  network protocol. (CVE-2019-17055)

    * kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c (CVE-2019-18805)

    * kernel: information leak bug caused  by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (CVE-2019-19534)

    * kernel: some ipv6 protocols not encrypted over ipsec tunnel. (CVE-2020-1749)

    * Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR     (CVE-2019-10639)

    * kernel: An out-of-bounds read in drivers/scsi/qedi/qedi_dbg.c leading to crash or information disclosure     (CVE-2019-15090)

    * kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash     (CVE-2019-15099)

    * kernel: Null pointer dereference in the sound/usb/line6/pcm.c (CVE-2019-15221)

    * kernel: Two memory leaks in the mwifiex_pcie_init_evt_ring() function in     drivers/net/wireless/marvell/mwifiex/pcie.c allows for a DoS (CVE-2019-19057)

    * kernel: Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c in the Linux kernel (DOS)     (CVE-2019-19073)

    * kernel: a memory leak in the ath9k management function in allows local DoS (CVE-2019-19074)

    * kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-     bound applications (CVE-2019-19922)

    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.

    Additional Changes:

    This update also fixes several bugs and adds various enhancements. Documentation for these changes is     available from the Release Notes document linked to in the References section.

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.

ID	Name	Product	Family	Severity
290532	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001581)	Nessus	Unity Linux Local Security Checks	medium
290190	Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004522)	Nessus	Unity Linux Local Security Checks	medium
288840	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004129)	Nessus	Unity Linux Local Security Checks	medium
249868	Linux Distros Unpatched Vulnerability : CVE-2021-33630	Nessus	Misc.	medium
203815	Photon OS 3.0: Linux PHSA-2024-3.0-0738	Nessus	PhotonOS Local Security Checks	high
201099	Debian dla-3840 : hyperv-daemons - security update	Nessus	Debian Local Security Checks	high
136116	RHEL 8 : kernel-rt (RHSA-2020:1567)	Nessus	Red Hat Local Security Checks	critical
136115	RHEL 8 : kernel (RHSA-2020:1769)	Nessus	Red Hat Local Security Checks	critical

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CVE-2021-33630

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