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

  - In the Linux kernel, the following vulnerability has been resolved: regmap: Fix possible double-free in     regcache_rbtree_exit() In regcache_rbtree_insert_to_block(), when 'present' realloc failed, the 'blk'     which is supposed to assign to 'rbnode->block' will be freed, so 'rbnode->block' points a freed memory, in     the error handling path of regcache_rbtree_init(), 'rbnode->block' will be freed again in     regcache_rbtree_exit(), KASAN will report double-free as follows: BUG: KASAN: double-free or invalid-free     in kfree+0xce/0x390 Call Trace: slab_free_freelist_hook+0x10d/0x240 kfree+0xce/0x390     regcache_rbtree_exit+0x15d/0x1a0 regcache_rbtree_init+0x224/0x2c0 regcache_init+0x88d/0x1310
    __regmap_init+0x3151/0x4a80 __devm_regmap_init+0x7d/0x100 madera_spi_probe+0x10f/0x333 [madera_spi]     spi_probe+0x183/0x210 really_probe+0x285/0xc30 To fix this, moving up the assignment of rbnode->block to     immediately after the reallocation has succeeded so that the data structure stays valid even if the second     reallocation fails. (CVE-2021-47483)

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

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1983-1 advisory.

    The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
    - CVE-2022-48686: Fix UAF when detecting digest errors (bsc#1223948).
    - CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
    - CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
    - CVE-2022-48697: Fix a use-after-free (bsc#1223922).
    - CVE-2024-26846: Do not wait in vain when unloading module (bsc#1223023).
    - CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
    - CVE-2023-42755: Check user supplied offsets (bsc#1215702).
    - CVE-2023-52664: Eliminate double free in error handling logic (bsc#1224747).
    - CVE-2023-52796: Add ipvlan_route_v6_outbound() helper (bsc#1224930).
    - CVE-2021-47246: Fix page reclaim for dead peer hairpin (bsc#1224831).
    - CVE-2023-52732: Blocklist the kclient when receiving corrupted snap trace (bsc#1225222).
    - CVE-2024-35936: Add missing mutex_unlock in btrfs_relocate_sys_chunks() (bsc#1224644)
    - CVE-2021-47548: Fixed a possible array out-of-bounds (bsc#1225506)
    - CVE-2024-36029: Pervent access to suspended controller (bsc#1225708)
    - CVE-2024-26625: Call sock_orphan() at release time (bsc#1221086)
    - CVE-2021-47352: Add validation for used length (bsc#1225124).
    - CVE-2023-52698: Fixed memory leak in netlbl_calipso_add_pass() (bsc#1224621)
    - CVE-2021-47431: Fix gart.bo pin_count leak (bsc#1225390).
    - CVE-2024-35935: Handle path ref underflow in header iterate_inode_ref() (bsc#1224645)
    - CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
    - CVE-2021-47423: Fix file release memory leak (bsc#1225366).
    - CVE-2022-48710: Fix a possible null pointer dereference (bsc#1225230).
    - CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
    - CVE-2024-35932: Do not check if plane->state->fb == state->fb (bsc#1224650).
    - CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
    - CVE-2024-35809: Drain runtime-idle callbacks before driver removal (bsc#1224738).
    - CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
    - CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
    - CVE-2021-47509: Limit the period size to 16MB (bsc#1225409).
    - CVE-2024-35877: Fixed VM_PAT handling in COW mappings (bsc#1224525).
    - CVE-2024-35982: Avoid infinite loop trying to resize local TT (bsc#1224566)
    - CVE-2024-35969: Fixed race condition between ipv6_get_ifaddr and ipv6_del_addr (bsc#1224580).
    - CVE-2021-47277: Avoid speculation-based attacks from out-of-range memslot accesses (bsc#1224960).
    - CVE-2024-35791: Flush pages under kvm->lock to fix UAF in svm_register_enc_region() (bsc#1224725).
    - CVE-2021-47401: Fix stack information leak (bsc#1225242).
    - CVE-2023-52867: Fix possible buffer overflow (bsc#1225009).
    - CVE-2023-52821: Fix a possible null pointer dereference (bsc#1225022).
    - CVE-2021-47265: Verify port when creating flow rule (bsc#1224957)
    - CVE-2021-47362: Update intermediate power state for SI (bsc#1225153).
    - CVE-2021-47361: Fix error handling in mcb_alloc_bus() (bsc#1225151).
    - CVE-2023-52864: Fix opening of char device (bsc#1225132).
    - CVE-2022-48708: Fix potential NULL dereference (bsc#1224942).
    - CVE-2024-35944: Fixed memcpy() run-time warning in dg_dispatch_as_host() (bsc#1224648).
    - CVE-2021-47238: Fix memory leak in ip_mc_add1_src (bsc#1224847)
    - CVE-2023-52730: Fix possible resource leaks in some error paths (bsc#1224956).
    - CVE-2021-47355: Fix possible use-after-free in nicstar_cleanup() (bsc#1225141).
    - CVE-2021-47245: Fix out of bounds when parsing TCP options (bsc#1224838)
    - CVE-2024-35878: Prevent NULL pointer dereference in vsnprintf() (bsc#1224671).
    - CVE-2023-52747: Restore allocated resources on failed copyout (bsc#1224931)
    - CVE-2021-47249: Fix memory leak in rds_recvmsg (bsc#1224880)
    - CVE-2021-47397: Break out if skb_header_pointer returns NULL in sctp_rcv_ootb (bsc#1225082)
    - CVE-2021-47250: Fix memory leak in netlbl_cipsov4_add_std (bsc#1224827)
    - CVE-2024-35849: Fix information leak in btrfs_ioctl_logical_to_ino() (bsc#1224733).
    - CVE-2024-27436: Stop parsing channels bits when all channels are found (bsc#1224803).
    - CVE-2021-47281: Fix race of snd_seq_timer_open() (bsc#1224983).
    - CVE-2024-35789: Clear fast rx for non-4addr sta VLAN changes (bsc#1224749).
    - CVE-2024-35830: Register v4l2 async device only after successful setup (bsc#1224680).
    - CVE-2021-47334: Fix two use after free in ibmasm_init_one (bsc#1225112).
    - CVE-2021-47357: Fix possible use-after-free in ia_module_exit() (bsc#1225144).
    - CVE-2023-52875: Add check for mtk_alloc_clk_data (bsc#1225096).
    - CVE-2023-52865: Add check for mtk_alloc_clk_data (bsc#1225086).
    - CVE-2024-35887: Fix use-after-free bugs caused by ax25_ds_del_timer (bzg#1224663)
    - CVE-2021-47483: Fixed possible double-free in regcache_rbtree_exit() (bsc#1224907).
    - CVE-2024-26957: Fix reference counting on zcrypt card objects (bsc#1223666).
    - CVE-2023-52691: Fix a double-free in si_dpm_init (bsc#1224607).
    - CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
    - CVE-2023-52586: Fixed mutex lock in control vblank irq (bsc#1221081).
    - CVE-2024-27062: Fixed nouveau lock inside client object tree (bsc#1223834).
    - CVE-2024-26984: Fix instmem race condition around ptr stores (bsc#1223633)
    - CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
    - CVE-2024-27396: Fixed Use-After-Free in gtp_dellink (bsc#1224096).
    - CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
    - CVE-2024-26900: Fixed kmemleak of rdev->serial (bsc#1223046).
    - CVE-2024-27401: Fixed user_length taken into account when fetching packet contents (bsc#1224181).
    - CVE-2024-26775: Fixed potential deadlock at set_capacity (bsc#1222627).
    - CVE-2024-26958: Fixed UAF in direct writes (bsc#1223653).
    - CVE-2022-48704: Add a force flush to delay work when radeon (bsc#1223932)
    - CVE-2021-47206: Check return value after calling platform_get_resource() (bsc#1222894).
    - CVE-2024-26915: Reset IH OVERFLOW_CLEAR bit (bsc#1223207)
    - CVE-2024-26996: Fix UAF ncm object at re-bind after usb ep transport error (bsc#1223752).
    - CVE-2024-26874: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip (bsc#1223048)
    - CVE-2022-48702: Fix out of bounds access in snd_emu10k1_pcm_channel_alloc() (bsc#1223923).
    - CVE-2022-48672: Fix off-by-one error in unflatten_dt_nodes() (bsc#1223931).
    - CVE-2021-47113: Abort btrfs rename_exchange if we fail to insert the second ref (bsc#1221543).
    - CVE-2024-26791: Fixed properly validate device names in btrfs (bsc#1222793)
    - CVE-2021-47131: Fixed a use-after-free after the TLS device goes down and up (bsc#1221545).
    - CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets     (bsc#1220513).
    - CVE-2024-0639: Fixed a denial-of-service vulnerability due to a deadlock found in sctp_auto_asconf_init     in net/sctp/socket.c (bsc#1218917).
    - CVE-2024-27008: Fix out of bounds access (bsc#1223802).
    - CVE-2024-26876: Fixed crash on irq during probe (bsc#1223119).
    - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).


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

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

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    kernel: drm/sched: Avoid data corruptions(CVE-2021-47354)

    drm/sched: Avoid data corruptions(CVE-2024-46759)

    hwmon: (lm95234) Fix underflows seen when writing limit attributes(CVE-2024-46758)

    exec: Fix ToCToU between perm check and set-uid/gid usage(CVE-2024-43882)

    Squashfs: sanity check symbolic link size(CVE-2024-46744)

    scsi: aacraid: Fix double-free on probe failure(CVE-2024-46673)

    ata: libata-core: Fix double free on error(CVE-2024-41087)

    drm/amdgpu: fix ucode out-of-bounds read warning(CVE-2024-46723)

    tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc(CVE-2023-52880)

    drm/amdgpu: fix ucode out-of-bounds read warning(CVE-2024-42228)

    hwmon: (nct6775-core) Fix underflows seen when writing limit attributes(CVE-2024-46757)

    kernel:scsi: qedf: Ensure the copied buf is NUL terminated(CVE-2024-38559)

    drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links(CVE-2024-46816)

    of/irq: Prevent device address out-of-bounds read in interrupt map walk(CVE-2024-46743)

    net/tls: Fix flipped sign in tls_err_abort() calls(CVE-2021-47496)

    netfilter: fix use-after-free in __nf_register_net_hook()(CVE-2022-48912)

    SUNRPC: Fix UAF in svc_tcp_listen_data_ready()(CVE-2023-52885)

    drm/ nouveau: fix off by one in BIOS boundary checking(CVE-2022-48732)

    kernel:RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests(CVE-2021-47391)

    kernel:sctp: fix kernel-infoleak for SCTP sockets(CVE-2022-48855)

    igbvf: fix double free in `igbvf_probe`(CVE-2021-47589)

    rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()(CVE-2022-48742)

    phylib: fix potential use-after-free(CVE-2022-48754)

    kernel:net: qcom/emac: fix UAF in emac_remove(CVE-2021-47311)

    kernel:tcp: do not accept ACK of bytes we never sent(CVE-2023-52881)

    kernel:net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources()(CVE-2021-47541)

    net/ipv6: avoid possible UAF in ip6_route_mpath_notify()(CVE-2024-26852)

    kernel:tty: n_gsm: fix possible out-of-bounds in gsm0_receive()(CVE-2024-36016)

    kernel:tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().(CVE-2024-36904)

    kernel: pinctrl: core: delete incorrect free in pinctrl_enable()(CVE-2024-36940)

    drm/client: Fully protect modes[] with dev-mode_config.mutex(CVE-2024-35950)

    USB: core: Fix deadlock in usb_deauthorize_interface()(CVE-2024-26934)

    KVM: Always flush async #PF workqueue when vCPU is being destroyed(CVE-2024-26976)

    sch/ netem: fix use after free in netem_dequeue(CVE-2024-46800)

    ipv6: prevent UAF in ip6_send_skb()(CVE-2024-44987)

    RDMA/iwcm: Fix a use-after-free related to destroying CM IDs(CVE-2024-42285)

    IB/core: Implement a limit on UMAD receive List(CVE-2024-42145)

    bnx2x: Fix multiple UBSAN array-index-out-of-bounds(CVE-2024-42148)

    tcp_metrics: validate source addr length(CVE-2024-42154)

    kernel:bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()(CVE-2024-39487)

    kernel:regmap: Fix possible double-free in regcache_rbtree_exit()(CVE-2021-47483)

    kernel:kprobes: Fix possible use-after-free issue on kprobe registration(CVE-2024-35955)

    nvme-rdma: destroy cm id before destroy qp to avoid use after free(CVE-2021-47378)

    nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells(CVE-2021-47497)

    kernel:ftrace: Fix possible use-after-free issue in ftrace_location()(CVE-2024-38588)

    kernel:net: bridge: xmit: make sure we have at least eth header len bytes(CVE-2024-38538)

    kernel:net: fix __dst_negative_advice() race(CVE-2024-36971)

    kernel:of: module: add buffer overflow check in of_modalias()(CVE-2024-38541)

    kernel:tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets(CVE-2024-36905)

    wifi: mac80211: don't return unset power in ieee80211_get_tx_power()(CVE-2023-52832)

    kernel:ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in     hns_dsaf_ge_srst_by_port()(CVE-2021-47548)

    kernel:net/mlx5: Properly link new fs rules into the tree(CVE-2024-35960)

    tracing: Correct the length check which causes memory corruption(CVE-2021-47274)

    drm/amdgpu: fix mc_data out-of-bounds read warning(CVE-2024-46722)

    kernel:kdb: Fix buffer overflow during tab-complete(CVE-2024-39480)

    kernel: IB/mlx5: Fix initializing CQ fragments buffer(CVE-2021-47261)

    nvme-rdma: fix possible use-after-free in transport error_recovery work(CVE-2022-48788)

    scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select()(CVE-2021-47576)

    hwmon: (w83627ehf) Fix underflows seen when writing limit attributes(CVE-2024-46756)

    can: peak_pci: peak_pci_remove(): fix UAF(CVE-2021-47456)

    kernel: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes(CVE-2024-35789)

    rds: tcp: Fix use-after-free of net in reqsk_timer_handler().(CVE-2024-26865)

    netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()(CVE-2024-47685)

    af_unix: Fix garbage collector racing against connect()(CVE-2024-26923)

Tenable has extracted the preceding description block directly from the EulerOS kernel 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 version of kernel installed on the remote host is prior to 4.14.262-135.489. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1563 advisory.

    2025-01-30: CVE-2021-47483 was added to this advisory.

    2025-01-30: CVE-2021-47506 was added to this advisory.

    A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux     kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an     off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this     vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source     port randomization are indirectly affected as well. (CVE-2021-20322)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28711)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28712)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28713)

    Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: The timeout could even never trigger if the guest manages to have only one free     slot in its RX queue ring page and the next package would require more than one free slot, which may be     the case when using GSO, XDP, or software hashing. (CVE-2021-28714)

    Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming     new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715)

    A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP     association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and     the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

    A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some     regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the     memory pages. A local user could use this flaw to get unauthorized access to some data. (CVE-2021-4002)

    A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size     increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS     filesystem otherwise not accessible to them. (CVE-2021-4155)

    In the Linux kernel, the following vulnerability has been resolved:

    regmap: Fix possible double-free in regcache_rbtree_exit() (CVE-2021-47483)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: fix use-after-free due to delegation race (CVE-2021-47506)

    The cgroup release_agent is called with call_usermodehelper. The function call_usermodehelper starts the     release_agent with a full set of capabilities. Therefore require capabilities when setting the     release_agent. (CVE-2022-0492)

Tenable has extracted the preceding description block directly from the tested product 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	名称	产品	系列	发布时间	最近更新时间	严重程度
230138	Linux Distros Unpatched Vulnerability : CVE-2021-47483	Nessus	Misc.	2025/3/5	2026/8/7	high
276196	TencentOS Server 3: kernel (TSSA-2024:1027)	Nessus	Tencent Local Security Checks	2025/11/20	2026/3/11	high
200410	SUSE SLES12: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2024:1983-1)	Nessus	SuSE Local Security Checks	2024/6/12	2026/6/26	high
214406	EulerOS 2.0 SP8 : kernel (EulerOS-SA-2025-1123)	Nessus	Huawei Local Security Checks	2025/1/21	2025/9/25	critical
276407	TencentOS Server 4: kernel (TSSA-2025:0047)	Nessus	Tencent Local Security Checks	2025/11/20	2025/11/20	high
239742	TencentOS Server 2: kernel (TSSA-2024:1030)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/23	high
157410	Amazon Linux AMI : kernel (ALAS-2022-1563)	Nessus	Amazon Linux Local Security Checks	2022/2/7	2026/6/3	high

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