In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at the next step. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:01600-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2021-47659: drm/plane: Move range check for format_count earlier (bsc#1237839).
    - CVE-2022-49044: dm integrity: fix memory corruption when tag_size is less than digest size     (bsc#1237840).
    - CVE-2022-49055: drm/amdkfd: Check for potential null return of kmalloc_array() (bsc#1237868).
    - CVE-2022-49060: net/smc: Fix NULL pointer dereference in smc_pnet_find_ib() (bsc#1237845).
    - CVE-2022-49086: net: openvswitch: fix leak of nested actions (bsc#1238037).
    - CVE-2022-49111: Bluetooth: Fix use after free in hci_send_acl (bsc#1237984).
    - CVE-2022-49118: scsi: hisi_sas: Free irq vectors in order for v3 HW (bsc#1237979).
    - CVE-2022-49121: scsi: pm8001: Fix tag leaks on error (bsc#1237926).
    - CVE-2022-49137: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj (bsc#1238155).
    - CVE-2022-49175: PM: core: keep irq flags in device_pm_check_callbacks() (bsc#1238099).
    - CVE-2022-49176: bfq: fix use-after-free in bfq_dispatch_request (bsc#1238097).
    - CVE-2022-49179: block, bfq: do not move oom_bfqq (bsc#1238092).
    - CVE-2022-49188: remoteproc: qcom_q6v5_mss: Fix some leaks in q6v5_alloc_memory_region (bsc#1238138).
    - CVE-2022-49197: af_netlink: Fix shift out of bounds in group mask calculation (bsc#1238455).
    - CVE-2022-49205: bpf, sockmap: Fix double uncharge the mem of sk_msg (bsc#1238335).
    - CVE-2022-49232: drm/amd/display: Fix a NULL pointer dereference in     amdgpu_dm_connector_add_common_modes() (bsc#1238139).
    - CVE-2022-49290: mac80211: fix potential double free on mesh join (bsc#1238156).
    - CVE-2022-49305: drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop() (bsc#1238645).
    - CVE-2022-49325: tcp: add accessors to read/set tp->snd_cwnd (bsc#1238398).
    - CVE-2022-49335: drm/amdgpu/cs: make commands with 0 chunks illegal behaviour (bsc#1238377).
    - CVE-2022-49351: net: altera: Fix refcount leak in altera_tse_mdio_create (bsc#1237939).
    - CVE-2022-49385: driver: base: fix UAF when driver_attach failed (bsc#1237951).
    - CVE-2022-49390: macsec: fix UAF bug for real_dev (bsc#1238233).
    - CVE-2022-49411: bfq: Make sure bfqg for which we are queueing requests is online (bsc#1238307).
    - CVE-2022-49442: drivers/base/node.c: fix compaction sysfs file leak (bsc#1238243).
    - CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
    - CVE-2022-49478: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init (bsc#1238000).
    - CVE-2022-49489: drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm     runtime resume (bsc#1238244).
    - CVE-2022-49504: scsi: lpfc: Inhibit aborts if external loopback plug is inserted (bsc#1238835).
    - CVE-2022-49521: scsi: lpfc: Fix resource leak in lpfc_sli4_send_seq_to_ulp() (bsc#1238938).
    - CVE-2022-49525: media: cx25821: Fix the warning when removing the module (bsc#1238022).
    - CVE-2022-49534: scsi: lpfc: Protect memory leak for NPIV ports sending PLOGI_RJT (bsc#1238893).
    - CVE-2022-49535: scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI     (bsc#1238937).
    - CVE-2022-49536: scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock (bsc#1238838).
    - CVE-2022-49537: scsi: lpfc: Fix call trace observed during I/O with CMF enabled (bsc#1238930).
    - CVE-2022-49542: scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg() (bsc#1238722).
    - CVE-2022-49561: netfilter: conntrack: re-fetch conntrack after insertion (bsc#1238537).
    - CVE-2022-49590: igmp: Fix data-races around sysctl_igmp_llm_reports (bsc#1238844).
    - CVE-2022-49658: bpf, selftests: Add verifier test case for imm=0,umin=0,umax=1 scalar (bsc#1238803).
    - CVE-2022-49668: PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events (bsc#1237957).
    - CVE-2022-49693: drm/msm/mdp4: Fix refcount leak in mdp4_modeset_init_intf (bsc#1237954).
    - CVE-2022-49725: i40e: Fix call trace in setup_tx_descriptors (bsc#1238016).
    - CVE-2022-49728: kABI workaround for changeing the variable length type to size_t (bsc#1239111).
    - CVE-2022-49730: scsi: lpfc: Resolve NULL ptr dereference after an ELS LOGO is aborted (bsc#1239070).
    - CVE-2022-49749: i2c: designware: use casting of u64 in clock multiplication to avoid overflow     (bsc#1240243).
    - CVE-2022-49753: dmaengine: Fix double increment of client_count in dma_chan_get() (bsc#1240250).
    - CVE-2023-53023: net: nfc: Fix use-after-free in local_cleanup() (bsc#1240309).
    - CVE-2023-53032: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function     (bsc#1240270).
    - CVE-2024-49994: block: fix integer overflow in BLKSECDISCARD (bsc#1237757).
    - CVE-2024-50038: netfilter: xtables: fix typo causing some targets not to load on IPv6 (bsc#1231910).
    - CVE-2024-50272: filemap: Fix bounds checking in filemap_read() (bsc#1233461 bsc#1234209).
    - CVE-2024-52559: drm/msm/gem: prevent integer overflow in msm_ioctl_gem_submit() (bsc#1238507).
    - CVE-2024-54683: netfilter: IDLETIMER: Fix for possible ABBA deadlock (bsc#1235729).
    - CVE-2024-56590: skbuff: introduce skb_pull_data (bsc#1235038).
    - CVE-2024-56641: net/smc: initialize close_work early to avoid warning (bsc#1235526).
    - CVE-2024-57924: fs: relax assertions on failure to encode file handles (bsc#1236086).
    - CVE-2024-57980: media: uvcvideo: Fix double free in error path (bsc#1237911).
    - CVE-2024-57981: usb: xhci: Fix NULL pointer dereference on certain command aborts (bsc#1237912).
    - CVE-2024-58005: tpm: Change to kvalloc() in eventlog/acpi.c (bsc#1237873).
    - CVE-2024-58009: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc (bsc#1238760).
    - CVE-2024-58017: printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX (bsc#1237950     bsc#1239112).
    - CVE-2024-58063: wifi: rtlwifi: fix memory leaks and invalid access at probe error path (bsc#1238984).
    - CVE-2024-58093: PCI/ASPM: Fix link state exit during switch upstream function removal (bsc#1241347).
    - CVE-2025-21635: rds: sysctl: rds_tcp_{rcv,snd}buf: avoid using current->nsproxy (bsc#1236111).
    - CVE-2025-21735: NFC: nci: Add bounds checking in nci_hci_create_pipe() (bsc#1238497).
    - CVE-2025-21750: wifi: brcmfmac: Check the return value of of_property_read_string_index() (bsc#1238905).
    - CVE-2025-21758: ipv6: mcast: add RCU protection to mld_newpack() (bsc#1238737).
    - CVE-2025-21768: net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels (bsc#1238714).
    - CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
    - CVE-2025-21779: KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel     (bsc#1238768).
    - CVE-2025-21806: net: let net.core.dev_weight always be non-zero (bsc#1238746).
    - CVE-2025-21862: drop_monitor: fix incorrect initialization order (bsc#1239474).
    - CVE-2025-21881: uprobes: Reject the shared zeropage in uprobe_write_opcode() (bsc#1240185).
    - CVE-2025-21909: wifi: nl80211: reject cooked mode if it is set along with other flags (bsc#1240590).
    - CVE-2025-21910: wifi: cfg80211: regulatory: improve invalid hints checking (bsc#1240583).
    - CVE-2025-21926: net: gso: fix ownership in __udp_gso_segment (bsc#1240712).
    - CVE-2025-21927: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() (bsc#1240714).
    - CVE-2025-21931: hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio (bsc#1240709).
    - CVE-2025-21941: drm/amd/display: Fix null check for pipe_ctx->plane_state in (bsc#1240701).
    - CVE-2025-21948: HID: appleir: Fix potential NULL dereference at raw event handle (bsc#1240703).
    - CVE-2025-21956: drm/amd/display: Assign normalized_pix_clk when color depth = 14 (bsc#1240739).
    - CVE-2025-21957: scsi: qla1280: Fix kernel oops when debug level > 2 (bsc#1240742).
    - CVE-2025-21963: cifs: Fix integer overflow while processing acdirmax mount option (bsc#1240717).
    - CVE-2025-21964: cifs: Fix integer overflow while processing acregmax mount option (bsc#1240740).
    - CVE-2025-21976: fbdev: hyperv_fb: Allow graceful removal of framebuffer (bsc#1241145).
    - CVE-2025-22004: net: atm: fix use after free in lec_send() (bsc#1240835).
    - CVE-2025-22008: regulator: check that dummy regulator has been probed before using it (bsc#1240942).
    - CVE-2025-22010: RDMA/hns: Fix soft lockup during bt pages loop (bsc#1240943).
    - CVE-2025-22018: atm: Fix NULL pointer dereference (bsc#1241266).
    - CVE-2025-22053: net: ibmveth: make veth_pool_store stop hanging (bsc#1241373).
    - CVE-2025-22055: net: fix geneve_opt length integer overflow (bsc#1241371).
    - CVE-2025-22060: net: mvpp2: Prevent parser TCAM memory corruption (bsc#1241526).
    - CVE-2025-22086: RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow (bsc#1241458).
    - CVE-2025-23131: dlm: prevent NPD when writing a positive value to event_done (bsc#1241601).
    - CVE-2025-37785: ext4: fix OOB read when checking dotdot dir (bsc#1241640).


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 version of kernel installed on the remote host is prior to 5.4.231-137.341. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-042 advisory.

    A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing     sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw     to potentially crash the system causing a denial of service. (CVE-2022-4129)

    In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows     an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control     configuration that is set up with tc qdisc and tc class commands. This affects qdisc_graft in     net/sched/sch_api.c. (CVE-2022-47929)

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

    udf: Fix preallocation discarding at indirect extent boundary (CVE-2022-48946)

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

    igb: Initialize mailbox message for VF reset (CVE-2022-48949)

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

    perf/x86/amd: fix potential integer overflow on shift of a int (CVE-2022-49748)

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

    dmaengine: Fix double increment of client_count in dma_chan_get() (CVE-2022-49753)

    The Linux kernel does not correctly mitigate SMT attacks, as discovered through a strange pattern in the     kernel API using STIBP as a mitigation, leaving the process exposed for a short period of time after a     syscall. The kernel also does not issue an IBPB immediately during the syscall. (CVE-2023-0045)

    A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network     subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394)

    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-2023-0459)

    There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local     privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or     CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.

    There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.

    When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket.
    The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is     created from the listener, the context is inherited and vulnerable.

    The setsockopt TCP_ULP operation does not require any privilege.

    We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

    A memory corruption flaw was found in the Linux kernel's human interface device (HID) subsystem in how a     user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their     privileges on the system. (CVE-2023-1073)

    cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes     indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

    atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition     rather than valid classification results). (CVE-2023-23455)

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

    net/sched: act_mpls: Fix warning during failed attribute validation (CVE-2023-52906)

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

    bpf: Skip task with pid=1 in send_signal_common() (CVE-2023-52992)

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

    x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL (CVE-2023-52993)

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

    ipv4: prevent potential spectre v1 gadget in fib_metrics_match() (CVE-2023-52996)

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

    ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() (CVE-2023-52997)

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

    net: fix UaF in netns ops registration error path (CVE-2023-52999)

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

    netlink: prevent potential spectre v1 gadgets (CVE-2023-53000)

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

    cifs: Fix oops due to uncleared server->smbd_conn in reconnect (CVE-2023-53006)

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

    tracing: Make sure trace_printk() can output as soon as it can be used (CVE-2023-53007)

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

    HID: betop: check shape of output reports (CVE-2023-53015)

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

    net: mdio: validate parameter addr in mdiobus_get_phy() (CVE-2023-53019)

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

    net/sched: sch_taprio: fix possible use-after-free (CVE-2023-53021)

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

    bpf: Fix pointer-leak due to insufficient speculative store bypass mitigation (CVE-2023-53024)

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

    RDMA/core: Fix ib block iterator counter overflow (CVE-2023-53026)

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

    netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. (CVE-2023-53032)

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 4.14.304-226.531. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-1932 advisory.

    Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC     interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It     appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol     headers are all contained within the linear section of the SKB and some NICs behave badly if this is not     the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x)     though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with     split headers, netback will forward those violating above mentioned assumption to the networking core,     resulting in said misbehavior. (CVE-2022-3643)

    Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs;
    the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced     another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the     XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock     could occur in case of netpoll being active for the interface the xen-netback driver is connected to     (CVE-2022-42329). (CVE-2022-42328)

    Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs;
    the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced     another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the     XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock     could occur in case of netpoll being active for the interface the xen-netback driver is connected to     (CVE-2022-42329). (CVE-2022-42329)

    An issue was discovered in the Linux kernel through 6.0.10. l2cap_config_req in net/bluetooth/l2cap_core.c     has an integer wraparound via L2CAP_CONF_REQ packets. (CVE-2022-45934)

    In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows     an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control     configuration that is set up with tc qdisc and tc class commands. This affects qdisc_graft in     net/sched/sch_api.c. (CVE-2022-47929)

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

    udf: Fix preallocation discarding at indirect extent boundary (CVE-2022-48946)

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

    Bluetooth: L2CAP: Fix u8 overflow (CVE-2022-48947)

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

    igb: Initialize mailbox message for VF reset (CVE-2022-48949)

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

    ipv6: avoid use-after-free in ip6_fragment() (CVE-2022-48956)

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

    mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (CVE-2022-48972)

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

    HID: core: fix shift-out-of-bounds in hid_report_raw_event (CVE-2022-48978)

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

    media: v4l2-dv-timings.c: fix too strict blanking sanity checks (CVE-2022-48987)

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

    memcg: fix possible use-after-free in memcg_write_event_control() (CVE-2022-48988)

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

    mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths (CVE-2022-48991)

    The Linux kernel does not correctly mitigate SMT attacks, as discovered through a strange pattern in the     kernel API using STIBP as a mitigation, leaving the process exposed for a short period of time after a     syscall. The kernel also does not issue an IBPB immediately during the syscall. (CVE-2023-0045)

    A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network     subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394)

    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-2023-0459)

    There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local     privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or     CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.

    There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.

    When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket.
    The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is     created from the listener, the context is inherited and vulnerable.

    The setsockopt TCP_ULP operation does not require any privilege.

    We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

    atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition     rather than valid classification results). (CVE-2023-23455)

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

    netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. (CVE-2023-53032)

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 5.15.90-54.138. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-013 advisory.

    In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows     an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control     configuration that is set up with tc qdisc and tc class commands. This affects qdisc_graft in     net/sched/sch_api.c. (CVE-2022-47929)

    A flaw NULL Pointer Dereference in the Linux kernel NTFS3 driver function attr_punch_hole() was found. A     local user could use this flaw to crash the system. (CVE-2022-4842)

    In the Linux kernel before 6.1.3, fs/ntfs3/inode.c does not validate the attribute name offset. An     unhandled page fault may occur. (CVE-2022-48424)

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

    sched/core: Fix use-after-free bug in dup_user_cpus_ptr() (CVE-2022-48892)

    The Linux kernel does not correctly mitigate SMT attacks, as discovered through a strange pattern in the     kernel API using STIBP as a mitigation, leaving the process exposed for a short period of time after a     syscall. The kernel also does not issue an IBPB immediately during the syscall. (CVE-2023-0045)

    A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could     allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to     the root user via arbitrary code execution. (CVE-2023-0179)

    A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network     subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394)

    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-2023-0459)

    There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local     privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or     CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.

    There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.

    When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket.
    The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is     created from the listener, the context is inherited and vulnerable.

    The setsockopt TCP_ULP operation does not require any privilege.

    We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

    cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes     indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

    atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition     rather than valid classification results). (CVE-2023-23455)

    In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in fs/ntfs3/run.c, related to a     difference between NTFS sector size and media sector size. (CVE-2023-26544)

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

    net/sched: act_mpls: Fix warning during failed attribute validation (CVE-2023-52906)

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

    netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. (CVE-2023-53032)

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

    netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits (CVE-2023-53033)

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 5.10.165-143.735. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-026 advisory.

    In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows     an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control     configuration that is set up with tc qdisc and tc class commands. This affects qdisc_graft in     net/sched/sch_api.c. (CVE-2022-47929)

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

    rtc: cmos: Fix event handler registration ordering issue (CVE-2022-48953)

    The Linux kernel does not correctly mitigate SMT attacks, as discovered through a strange pattern in the     kernel API using STIBP as a mitigation, leaving the process exposed for a short period of time after a     syscall. The kernel also does not issue an IBPB immediately during the syscall. (CVE-2023-0045)

    A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could     allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to     the root user via arbitrary code execution. (CVE-2023-0179)

    There is a logic error in io_uring's implementation which can be used to trigger a use-after-free     vulnerability leading to privilege escalation. In the io_prep_async_work function the assumption that the     last io_grab_identity call cannot return false is not true, and in this case the function will use the     init_cred or the previous linked requests identity to do operations instead of using the current identity.
    This can lead to reference counting issues causing use-after-free. We recommend upgrading past version     5.10.161. (CVE-2023-0240)

    A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network     subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394)

    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-2023-0459)

    There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local     privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or     CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.

    There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.

    When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket.
    The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is     created from the listener, the context is inherited and vulnerable.

    The setsockopt TCP_ULP operation does not require any privilege.

    We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

    efi: rt-wrapper: Add missing include (CVE-2023-21102)

    cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes     indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

    atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition     rather than valid classification results). (CVE-2023-23455)

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

    net/sched: act_mpls: Fix warning during failed attribute validation (CVE-2023-52906)

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

    netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. (CVE-2023-53032)

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

    netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits (CVE-2023-53033)

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	Name	Product	Family	Severity
237099	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01600-1)	Nessus	SuSE Local Security Checks	high
171848	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2023-042)	Nessus	Amazon Linux Local Security Checks	high
171229	Amazon Linux 2 : kernel (ALAS-2023-1932)	Nessus	Amazon Linux Local Security Checks	high
171227	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-013)	Nessus	Amazon Linux Local Security Checks	high
171216	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-026)	Nessus	Amazon Linux Local Security Checks	high

Detections

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CVE-2023-53032

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Tenable Plugins

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