In the Linux kernel, the following vulnerability has been resolved: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() There is a memory leaks problem reported by kmemleak: unreferenced object 0xffff888102007a00 (size 128): comm "ubirsvol", pid 32090, jiffies 4298464136 (age 2361.231s) hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [<ffffffff8176cecd>] __kmalloc+0x4d/0x150 [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi] [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi] [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi] [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170 [<ffffffff83c142a5>] do_syscall_64+0x35/0x80 [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This is due to a mismatch between create and destroy interfaces, and in detail that "new_eba_tbl" created by ubi_eba_create_table() but destroyed by kfree(), while will causing "new_eba_tbl->entries" not freed. Fix it by replacing kfree(new_eba_tbl) with ubi_eba_destroy_table(new_eba_tbl)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992594 advisory.

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

    ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume()

    There is a memory leaks problem reported by kmemleak:

    unreferenced object 0xffff888102007a00 (size 128):
      comm ubirsvol, pid 32090, jiffies 4298464136 (age 2361.231s)       hex dump (first 32 bytes):
    ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
    ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
      backtrace:
    [<ffffffff8176cecd>] __kmalloc+0x4d/0x150     [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi]     [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi]     [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi]     [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170     [<ffffffff83c142a5>] do_syscall_64+0x35/0x80     [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

    This is due to a mismatch between create and destroy interfaces, and     in detail that new_eba_tbl created by ubi_eba_create_table() but     destroyed by kfree(), while will causing new_eba_tbl->entries not     freed.

    Fix it by replacing kfree(new_eba_tbl) with     ubi_eba_destroy_table(new_eba_tbl)

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 remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:4189-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2021-4460: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning (bsc#1250764).
    - CVE-2022-48631: ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0 (bsc#1223475).
    - CVE-2022-50236: iommu/mediatek: Fix crash on isr after kexec() (bsc#1249702).
    - CVE-2022-50249: memory: of: Fix refcount leak bug in of_get_ddr_timings() (bsc#1249747).
    - CVE-2022-50280: pnode: terminate at peers of source (bsc#1249806).
    - CVE-2022-50293: btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range (bsc#1249752).
    - CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
    - CVE-2022-50350: scsi: target: iscsi: Fix a race condition between login_work and the login thread     (bsc#1250261).
    - CVE-2022-50356: net: sched: sfb: fix null pointer access issue when sfb_init() fails (bsc#1250040).
    - CVE-2022-50367: fs: fix UAF/GPF bug in nilfs_mdt_destroy (bsc#1250277).
    - CVE-2022-50394: i2c: ismt: Fix an out-of-bounds bug in ismt_access() (bsc#1250107).
    - CVE-2022-50395: integrity: Fix memory leakage in keyring allocation error path (bsc#1250211).
    - CVE-2022-50423: ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (bsc#1250784).
    - CVE-2022-50443: drm/rockchip: lvds: fix PM usage counter unbalance in poweron (bsc#1250768).
    - CVE-2022-50459: scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() (bsc#1250850).
    - CVE-2022-50481: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() (bsc#1251051).
    - CVE-2022-50485: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode (bsc#1251197).
    - CVE-2022-50505: iommu/amd: Fix pci device refcount leak in ppr_notifier() (bsc#1251086).
    - CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
    - CVE-2022-50542: media: si470x: Fix use-after-free in si470x_int_in_callback() (bsc#1251330).
    - CVE-2022-50571: btrfs: call __btrfs_remove_free_space_cache_locked on cache load failure (bsc#1252487).
    - CVE-2023-53183: btrfs: exit gracefully if reloc roots don't match (bsc#1249863).
    - CVE-2023-53185: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes (bsc#1249820).
    - CVE-2023-53188: net: openvswitch: fix race on port output (bsc#1249854).
    - CVE-2023-53191: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains (bsc#1249721).
    - CVE-2023-53204: af_unix: Fix data-races around user->unix_inflight (bsc#1249682).
    - CVE-2023-53271: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() (bsc#1249916).
    - CVE-2023-53282: scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write     (bsc#1250311).
    - CVE-2023-53289: media: bdisp: Add missing check for create_workqueue (bsc#1249941).
    - CVE-2023-53292: blk-mq: protect q->elevator by ->sysfs_lock in blk_mq_elv_switch_none (bsc#1250163).
    - CVE-2023-53338: lwt: Fix return values of BPF xmit ops (bsc#1250074).
    - CVE-2023-53339: btrfs: fix BUG_ON condition in btrfs_cancel_balance (bsc#1250329).
    - CVE-2023-53373: crypto: seqiv - Handle EBUSY correctly (bsc#1250137).
    - CVE-2023-53433: net: add vlan_get_protocol_and_depth() helper (bsc#1250164).
    - CVE-2023-53476: iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() (bsc#1250839).
    - CVE-2023-53477: ipv6: Add lwtunnel encap size of all siblings in nexthop calculation (bsc#1250840).
    - CVE-2023-53484: lib: cpu_rmap: Avoid use after free on rmap->obj array entries (bsc#1250895).
    - CVE-2023-53517: tipc: do not update mtu if msg_max is too small in mtu negotiation (bsc#1250919).
    - CVE-2023-53519: media: v4l2-mem2mem: add lock to protect parameter num_rdy (bsc#1250964).
    - CVE-2023-53540: wifi: cfg80211: reject auth/assoc to AP with our address (bsc#1251053).
    - CVE-2023-53548: net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb (bsc#1251066).
    - CVE-2023-53556: iavf: Fix use-after-free in free_netdev (bsc#1251059).
    - CVE-2023-53559: ip_vti: fix potential slab-use-after-free in decode_session6 (bsc#1251052).
    - CVE-2023-53582: wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds     (bsc#1251061).
    - CVE-2023-53589: wifi: iwlwifi: mvm: don't trust firmware n_channels (bsc#1251129).
    - CVE-2023-53593: cifs: Release folio lock on fscache read hit (bsc#1251132).
    - CVE-2023-53594: driver core: fix resource leak in device_add() (bsc#1251166).
    - CVE-2023-53596: drivers: base: Free devm resources when unregistering a device (bsc#1251161).
    - CVE-2023-53619: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free (bsc#1251743).
    - CVE-2023-53620: md: fix soft lockup in status_resync.
    - CVE-2023-53624: net/sched: sch_fq: fix integer overflow of 'credit' (bsc#1251333).
    - CVE-2023-53635: netfilter: conntrack: fix wrong ct->timeout value (bsc#1251524).
    - CVE-2023-53648: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer (bsc#1251750).
    - CVE-2023-53687: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating     clk (bsc#1251772).
    - CVE-2023-53695: udf: Detect system inodes linked into directory hierarchy (bsc#1252539).
    - CVE-2023-53705: ipv6: Fix out-of-bounds access in ipv6_find_tlv() (bsc#1252554).
    - CVE-2023-53707: drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1 (bsc#1252632).
    - CVE-2023-53715: wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex (bsc#1252545).
    - CVE-2023-53717: wifi: ath9k: Fix potential stack-out-of-bounds write in ath9k_wmi_rsp_callback()     (bsc#1252560).
    - CVE-2023-53733: net: sched: cls_u32: Undo tcf_bind_filter if u32_replace_hw_knode (bsc#1252685).
    - CVE-2025-38539: trace/fgraph: Fix the warning caused by missing unregister notifier (bsc#1248211).
    - CVE-2025-38680: media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format() (bsc#1249203).
    - CVE-2025-38691: pNFS: Fix uninited ptr deref in block/scsi layout (bsc#1249215).
    - CVE-2025-38695: scsi: lpfc: Check for hdwq null ptr when cleaning up lpfc_vport structure (bsc#1249285).
    - CVE-2025-38699: scsi: bfa: Double-free fix (bsc#1249224).
    - CVE-2025-38700: scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated     (bsc#1249182).
    - CVE-2025-38714: hfsplus: fix slab-out-of-bounds in hfsplus_bnode_read() (bsc#1249260).
    - CVE-2025-38718: sctp: linearize cloned gso packets in sctp_rcv (bsc#1249161).
    - CVE-2025-38724: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (bsc#1249169).
    - CVE-2025-39676: scsi: qla4xxx: Prevent a potential error pointer dereference (bsc#1249302).
    - CVE-2025-39702: ipv6: sr: Fix MAC comparison to be constant-time (bsc#1249317).
    - CVE-2025-39724: serial: 8250: fix panic due to PSLVERR (bsc#1249265).
    - CVE-2025-39756: fs: Prevent file descriptor table allocations exceeding INT_MAX (bsc#1249512).
    - CVE-2025-39772: drm/hisilicon/hibmc: fix the hibmc loaded failed bug (bsc#1249506).
    - CVE-2025-39812: sctp: initialize more fields in sctp_v6_from_sk() (bsc#1250202).
    - CVE-2025-39813: ftrace: Fix potential warning in trace_printk_seq during ftrace_dump (bsc#1250032).
    - CVE-2025-39841: scsi: lpfc: Fix buffer free/clear order in deferred receive path (bsc#1250274).
    - CVE-2025-39866: fs: writeback: fix use-after-free in __mark_inode_dirty() (bsc#1250455).
    - CVE-2025-39876: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() (bsc#1250400).
    - CVE-2025-39911: i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path (bsc#1250704).
    - CVE-2025-39923: dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees (bsc#1250741).
    - CVE-2025-39929: smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path (bsc#1251036).
    - CVE-2025-39931: crypto: af_alg - Set merge to zero early in af_alg_sendmsg (bsc#1251100).
    - CVE-2025-39945: cnic: Fix use-after-free bugs in cnic_delete_task (bsc#1251230).
    - CVE-2025-39949: qed: Don't collect too many protection override GRC elements (bsc#1251177).
    - CVE-2025-39955: tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect() (bsc#1251804).
    - CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
    - CVE-2025-39970: i40e: Fix filter input checks to prevent config with invalid values (bsc#1252051).
    - CVE-2025-39971: i40e: Add bounds check for ch[] array (bsc#1252052).
    - CVE-2025-39972: i40e: fix idx validation in i40e_validate_queue_map (bsc#1252039).
    - CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
    - CVE-2025-39997: ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free (bsc#1252056).
    - CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
    - CVE-2025-40044: fs: udf: fix OOB read in lengthAllocDescs handling (bsc#1252785).
    - CVE-2025-40049: Squashfs: fix uninit-value in squashfs_get_parent (bsc#1252822).
    - CVE-2025-40078: bpf: Explicitly check accesses to bpf_sock_addr (bsc#1252789).
    - CVE-2025-40082: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1252775).
    - CVE-2025-40088: hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() (bsc#1252904).

    The following non security issues were fixed:

    - NFSv4.1: fix backchannel max_resp_sz verification check (bsc#1247518).
    - net: hv_netvsc: fix loss of early receive events from host during channel open (bsc#1252265).
    - openvswitch: fix lockup on tx to unregistering netdev with carrier (bsc#1249854)

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.

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

  - ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() There is a memory leaks problem     reported by kmemleak: unreferenced object 0xffff888102007a00 (size 128): comm ubirsvol, pid 32090,     jiffies 4298464136 (age 2361.231s) hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff     ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace:
    [<ffffffff8176cecd>] __kmalloc+0x4d/0x150 [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi]     [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi] [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850     [ubi] [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170 [<ffffffff83c142a5>] do_syscall_64+0x35/0x80     [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This is due to a mismatch between create and     destroy interfaces, and in detail that new_eba_tbl created by ubi_eba_create_table() but destroyed by     kfree(), while will causing new_eba_tbl->entries not freed. Fix it by replacing kfree(new_eba_tbl) with     ubi_eba_destroy_table(new_eba_tbl) (CVE-2023-53271)

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

The version of kernel installed on the remote host is prior to 4.14.309-231.529. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-1987 advisory.

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

    net: sched: fix memory leak in tcindex_set_parms (CVE-2022-50396)

    Detected a few exploitable gadgets that could leak secret memory through a side-channel such as MDS as     well as insufficient hardening of the usercopy functions against spectre-v1. (CVE-2023-0458)

    Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege     Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-     after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this     vulnerability to elevate its privileges to root.This issue affects Linux Kernel: from 4.14 before git     commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)

    A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited     to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate     filters in case of a perfect hashes while deleting the underlying structure which can later lead to double     freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to     root.We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. (CVE-2023-1829)

    When plain IBRS is enabled (not enhanced IBRS), the logic in spectre_v2_user_select_mitigation()     determines that STIBP is not needed. The IBRS bit implicitly protects against cross-thread branch     targetinjection. However, with legacy IBRS, the IBRS bit is cleared on returning to userspace for     performance reasons which leaves userspace threads vulnerable to cross-thread branch target injection     against which STIBP protects. (CVE-2023-1998)

    A use-after-free flaw was found in iscsi_sw_tcp_session_create in drivers/scsi/iscsi_tcp.c in the SCSI     sub-component in the Linux Kernel. This issue could allow an attacker to leak kernel internal information.
    (CVE-2023-2162)

    In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure     (for registering the sysctl table under a new location) during the renaming of a device. (CVE-2023-26545)

    A use-after-free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw     could allow a local user to cause a denial of service. (CVE-2023-2985)

    A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing a font->width and     font->height greater than 32 to the fbcon_set_font, since there are no checks in place, a shift-out-of-     bounds occurs, leading to undefined behavior and possible denial of service. (CVE-2023-3161)

    An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux     kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

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

    aio: fix mremap after fork null-deref (CVE-2023-52646)

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

    net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path (CVE-2023-52703)

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

    nilfs2: fix underflow in second superblock position calculations (CVE-2023-52705)

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

    mmc: sdio: fix possible resource leaks in some error paths (CVE-2023-52730)

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

    net: USB: Fix wrong-direction WARNING in plusb.c (CVE-2023-52742)

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

    mm/swapfile: add cond_resched() in get_swap_pages() (CVE-2023-52932)

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

    Squashfs: fix handling and sanity checking of xattr_ids count (CVE-2023-52933)

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

    scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress (CVE-2023-52974)

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

    net: openvswitch: fix flow memory leak in ovs_flow_cmd_new (CVE-2023-52977)

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

    squashfs: harden sanity check in squashfs_read_xattr_id_table (CVE-2023-52979)

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

    irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains (CVE-2023-53191)

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

    watchdog: Fix kmemleak in watchdog_cdev_register (CVE-2023-53234)

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

    ubi: ensure that VID header offset + VID header size <= alloc, size (CVE-2023-53265)

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

    ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() (CVE-2023-53271)

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

    udf: Do not update file length for failed writes to inline files (CVE-2023-53295)

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

    rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails (CVE-2023-53307)

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

    crypto: seqiv - Handle EBUSY correctly (CVE-2023-53373)

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

    scsi: ses: Don't attach if enclosure has no components (CVE-2023-53431)

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

    drm/radeon: free iio for atombios when driver shutdown (CVE-2023-53453)

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

    ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed (CVE-2023-53481)

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

    udf: Do not bother merging very long extents (CVE-2023-53506)

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

    scsi: ses: Fix slab-out-of-bounds in ses_intf_remove() (CVE-2023-53521)

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

    scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675)

    kernel: refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)

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.

The version of kernel installed on the remote host is prior to 5.4.235-144.344. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-043 advisory.

    A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks.
    L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after     running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can     execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past     commit 2e7eab81425a (CVE-2022-2196)

    It has been discovered that on some AMD CPUs, the RAS (Return Address Stack, also called RAP - Return     Address Predictor - in some AMD documentation, and RSB - Return Stack Buffer - in Intel terminology) is     dynamically partitioned between non-idle threads.  This allows an attacker to control speculative     execution on the adjacent thread. (CVE-2022-27672)

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

    netfilter: nft_tproxy: restrict to prerouting hook (CVE-2022-50001)

    Detected a few exploitable gadgets that could leak secret memory through a side-channel such as MDS as     well as insufficient hardening of the usercopy functions against spectre-v1. (CVE-2023-0458)

    Due to a type confusion during initializations, the tun and tap sockets in the Linux Kernel have their     socket UID hardcoded to 0, i.e. root. While it will be often correct, as TUN/TAP devices require     CAP_NET_ADMIN, it may not always be the case. The socket UID may be used for network filtering and     routing, thus TUN/TAP sockets may be incorrectly managed, potentially bypassing network filters based on     UID. (CVE-2023-1076)

    kernel: Type confusion in pick_next_rt_entity(), which can result in memory corruption. (CVE-2023-1077)

    The upstream bug report describes this issue as follows:

    A flaw found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The     rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user     can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_info *info`     actually points to something else that is potentially controlled by local user. It is known how to trigger     this, which causes an OOB access, and a lock corruption. (CVE-2023-1078)

    Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege     Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-     after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this     vulnerability to elevate its privileges to root.This issue affects Linux Kernel: from 4.14 before git     commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)

    A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited     to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate     filters in case of a perfect hashes while deleting the underlying structure which can later lead to double     freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to     root.We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. (CVE-2023-1829)

    When plain IBRS is enabled (not enhanced IBRS), the logic in spectre_v2_user_select_mitigation()     determines that STIBP is not needed. The IBRS bit implicitly protects against cross-thread branch     targetinjection. However, with legacy IBRS, the IBRS bit is cleared on returning to userspace for     performance reasons which leaves userspace threads vulnerable to cross-thread branch target injection     against which STIBP protects. (CVE-2023-1998)

    A use-after-free flaw was found in iscsi_sw_tcp_session_create in drivers/scsi/iscsi_tcp.c in the SCSI     sub-component in the Linux Kernel. This issue could allow an attacker to leak kernel internal information.
    (CVE-2023-2162)

    In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure     (for registering the sysctl table under a new location) during the renaming of a device. (CVE-2023-26545)

    A use-after-free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw     could allow a local user to cause a denial of service. (CVE-2023-2985)

    A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing a font->width and     font->height greater than 32 to the fbcon_set_font, since there are no checks in place, a shift-out-of-     bounds occurs, leading to undefined behavior and possible denial of service. (CVE-2023-3161)

    A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux     Kernel. In this flaw an attacker with local user access may lead to a system crash or a leak of internal     kernel information. (CVE-2023-3567)

    An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux     kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

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

    aio: fix mremap after fork null-deref (CVE-2023-52646)

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

    net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path (CVE-2023-52703)

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

    nilfs2: fix underflow in second superblock position calculations (CVE-2023-52705)

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

    sched/psi: Fix use-after-free in ep_remove_wait_queue() (CVE-2023-52707)

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

    mmc: mmc_spi: fix error handling in mmc_spi_probe() (CVE-2023-52708)

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

    mmc: sdio: fix possible resource leaks in some error paths (CVE-2023-52730)

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

    net: USB: Fix wrong-direction WARNING in plusb.c (CVE-2023-52742)

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

    IB/IPoIB: Fix legacy IPoIB due to wrong number of queues (CVE-2023-52745)

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

    mm/swapfile: add cond_resched() in get_swap_pages() (CVE-2023-52932)

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

    Squashfs: fix handling and sanity checking of xattr_ids count (CVE-2023-52933)

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

    vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF (CVE-2023-52973)

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

    scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress (CVE-2023-52974)

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

    efi: fix potential NULL deref in efi_mem_reserve_persistent (CVE-2023-52976)

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

    net: openvswitch: fix flow memory leak in ovs_flow_cmd_new (CVE-2023-52977)

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

    squashfs: harden sanity check in squashfs_read_xattr_id_table (CVE-2023-52979)

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

    ext4: Fix function prototype mismatch for ext4_feat_ktype (CVE-2023-53224)

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

    watchdog: Fix kmemleak in watchdog_cdev_register (CVE-2023-53234)

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

    thermal/drivers/hisi: Drop second sensor hi3660 (CVE-2023-53242)

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

    ubi: ensure that VID header offset + VID header size <= alloc, size (CVE-2023-53265)

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

    ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() (CVE-2023-53271)

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

    udf: Do not update file length for failed writes to inline files (CVE-2023-53295)

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

    rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails (CVE-2023-53307)

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

    crypto: seqiv - Handle EBUSY correctly (CVE-2023-53373)

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

    cifs: Fix warning and UAF when destroy the MR list (CVE-2023-53427)

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

    scsi: ses: Don't attach if enclosure has no components (CVE-2023-53431)

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

    drm/radeon: free iio for atombios when driver shutdown (CVE-2023-53453)

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

    ipv6: Add lwtunnel encap size of all siblings in nexthop calculation (CVE-2023-53477)

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

    ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed (CVE-2023-53481)

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

    udf: Do not bother merging very long extents (CVE-2023-53506)

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

    scsi: ses: Fix slab-out-of-bounds in ses_intf_remove() (CVE-2023-53521)

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

    sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop (CVE-2023-53590)

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

    scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675)

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

    udf: Detect system inodes linked into directory hierarchy (CVE-2023-53695)

    kernel: refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)

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

    scsi: ses: Fix possible addl_desc_ptr out-of-bounds accesses (CVE-2023-7324)

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.

The version of kernel installed on the remote host is prior to 5.10.173-154.642. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-028 advisory.

    A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks.
    L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after     running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can     execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past     commit 2e7eab81425a (CVE-2022-2196)

    It has been discovered that on some AMD CPUs, the RAS (Return Address Stack, also called RAP - Return     Address Predictor - in some AMD documentation, and RSB - Return Stack Buffer - in Intel terminology) is     dynamically partitioned between non-idle threads.  This allows an attacker to control speculative     execution on the adjacent thread. (CVE-2022-27672)

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

    netfilter: nft_tproxy: restrict to prerouting hook (CVE-2022-50001)

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

    drm: Fix potential null-ptr-deref due to drmm_mode_config_init() (CVE-2022-50556)

    Detected a few exploitable gadgets that could leak secret memory through a side-channel such as MDS as     well as insufficient hardening of the usercopy functions against spectre-v1. (CVE-2023-0458)

    Due to a type confusion during initializations, the tun and tap sockets in the Linux Kernel have their     socket UID hardcoded to 0, i.e. root. While it will be often correct, as TUN/TAP devices require     CAP_NET_ADMIN, it may not always be the case. The socket UID may be used for network filtering and     routing, thus TUN/TAP sockets may be incorrectly managed, potentially bypassing network filters based on     UID. (CVE-2023-1076)

    kernel: Type confusion in pick_next_rt_entity(), which can result in memory corruption. (CVE-2023-1077)

    The upstream bug report describes this issue as follows:

    A flaw found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The     rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user     can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_info *info`     actually points to something else that is potentially controlled by local user. It is known how to trigger     this, which causes an OOB access, and a lock corruption. (CVE-2023-1078)

    Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege     Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-     after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this     vulnerability to elevate its privileges to root.This issue affects Linux Kernel: from 4.14 before git     commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)

    A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited     to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate     filters in case of a perfect hashes while deleting the underlying structure which can later lead to double     freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to     root.We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. (CVE-2023-1829)

    A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local     privilege escalation.

    The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free     vulnerability due a race condition with fixed files getting unregistered.

    We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8. (CVE-2023-1872)

    When plain IBRS is enabled (not enhanced IBRS), the logic in spectre_v2_user_select_mitigation()     determines that STIBP is not needed. The IBRS bit implicitly protects against cross-thread branch     targetinjection. However, with legacy IBRS, the IBRS bit is cleared on returning to userspace for     performance reasons which leaves userspace threads vulnerable to cross-thread branch target injection     against which STIBP protects. (CVE-2023-1998)

    A use-after-free flaw was found in iscsi_sw_tcp_session_create in drivers/scsi/iscsi_tcp.c in the SCSI     sub-component in the Linux Kernel. This issue could allow an attacker to leak kernel internal information.
    (CVE-2023-2162)

    In the Linux kernel before 6.0.3, drivers/gpu/drm/virtio/virtgpu_object.c misinterprets the     drm_gem_shmem_get_sg_table return value (expects it to be NULL in the error case, whereas it is actually     an error pointer). (CVE-2023-22998)

    In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure     (for registering the sysctl table under a new location) during the renaming of a device. (CVE-2023-26545)

    A use-after-free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw     could allow a local user to cause a denial of service. (CVE-2023-2985)

    A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing a font->width and     font->height greater than 32 to the fbcon_set_font, since there are no checks in place, a shift-out-of-     bounds occurs, leading to undefined behavior and possible denial of service. (CVE-2023-3161)

    A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux     Kernel. In this flaw an attacker with local user access may lead to a system crash or a leak of internal     kernel information. (CVE-2023-3567)

    An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux     kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

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

    aio: fix mremap after fork null-deref (CVE-2023-52646)

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

    net: openvswitch: fix possible memory leak in ovs_meter_cmd_set() (CVE-2023-52702)

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

    net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path (CVE-2023-52703)

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

    nilfs2: fix underflow in second superblock position calculations (CVE-2023-52705)

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

    mmc: mmc_spi: fix error handling in mmc_spi_probe() (CVE-2023-52708)

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

    mmc: sdio: fix possible resource leaks in some error paths (CVE-2023-52730)

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

    Fix page corruption caused by racy check in __free_pages (CVE-2023-52739)

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

    cifs: Fix use-after-free in rdata->read_into_pages() (CVE-2023-52741)

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

    net: USB: Fix wrong-direction WARNING in plusb.c (CVE-2023-52742)

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

    IB/IPoIB: Fix legacy IPoIB due to wrong number of queues (CVE-2023-52745)

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

    xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr() (CVE-2023-52746)

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

    drm/i915: Fix potential bit_17 double-free (CVE-2023-52930)

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

    mm/swapfile: add cond_resched() in get_swap_pages() (CVE-2023-52932)

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

    Squashfs: fix handling and sanity checking of xattr_ids count (CVE-2023-52933)

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

    vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF (CVE-2023-52973)

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

    scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress (CVE-2023-52974)

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

    efi: fix potential NULL deref in efi_mem_reserve_persistent (CVE-2023-52976)

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

    net: openvswitch: fix flow memory leak in ovs_flow_cmd_new (CVE-2023-52977)

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

    squashfs: harden sanity check in squashfs_read_xattr_id_table (CVE-2023-52979)

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

    bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener (CVE-2023-52986)

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

    vfio/type1: prevent underflow of locked_vm via exec() (CVE-2023-53171)

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

    ext4: Fix function prototype mismatch for ext4_feat_ktype (CVE-2023-53224)

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

    watchdog: Fix kmemleak in watchdog_cdev_register (CVE-2023-53234)

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

    thermal/drivers/hisi: Drop second sensor hi3660 (CVE-2023-53242)

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

    ubi: ensure that VID header offset + VID header size <= alloc, size (CVE-2023-53265)

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

    ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() (CVE-2023-53271)

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

    udf: Do not update file length for failed writes to inline files (CVE-2023-53295)

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

    rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails (CVE-2023-53307)

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

    crypto: seqiv - Handle EBUSY correctly (CVE-2023-53373)

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

    PM: EM: fix memory leak with using debugfs_lookup() (CVE-2023-53411)

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

    objtool: Fix memory leak in create_static_call_sections() (CVE-2023-53423)

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

    cifs: Fix warning and UAF when destroy the MR list (CVE-2023-53427)

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

    scsi: ses: Don't attach if enclosure has no components (CVE-2023-53431)

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

    drm/radeon: free iio for atombios when driver shutdown (CVE-2023-53453)

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

    ipv6: Add lwtunnel encap size of all siblings in nexthop calculation (CVE-2023-53477)

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

    ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed (CVE-2023-53481)

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

    crypto: xts - Handle EBUSY correctly (CVE-2023-53494)

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

    udf: Do not bother merging very long extents (CVE-2023-53506)

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

    scsi: mpt3sas: Fix a memory leak (CVE-2023-53512)

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

    scsi: ses: Fix slab-out-of-bounds in ses_intf_remove() (CVE-2023-53521)

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

    sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop (CVE-2023-53590)

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

    irqchip: Fix refcount leak in platform_irqchip_probe (CVE-2023-53610)

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

    scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675)

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

    udf: Detect system inodes linked into directory hierarchy (CVE-2023-53695)

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

    ring-buffer: Handle race between rb_move_tail and rb_check_pages (CVE-2023-53709)

    kernel: refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)

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

    scsi: ses: Fix possible addl_desc_ptr out-of-bounds accesses (CVE-2023-7324)

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.

An update of the linux package has been released.

ID	Name	Product	Family	Severity
280343	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-992594)	Nessus	Unity Linux Local Security Checks	medium
276910	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:4189-1)	Nessus	SuSE Local Security Checks	high
265233	Linux Distros Unpatched Vulnerability : CVE-2023-53271	Nessus	Misc.	medium
173233	Amazon Linux 2 : kernel, --advisory ALAS2-2023-1987 (ALAS-2023-1987)	Nessus	Amazon Linux Local Security Checks	high
173230	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-043 (ALASKERNEL-5.4-2023-043)	Nessus	Amazon Linux Local Security Checks	high
173228	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-028 (ALASKERNEL-5.10-2023-028)	Nessus	Amazon Linux Local Security Checks	high
153035	Photon OS 4.0: Linux PHSA-2021-4.0-0095	Nessus	PhotonOS Local Security Checks	high

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