The remote SUSE Linux SLES15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3599-1 advisory.

    The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security and bugfixes.


    The following security bugs were fixed:

    - CVE-2022-38457: Fixed a use-after-free vulnerability in vmwgfx driver that allowed a local attacker to     cause a denial of service (bsc#1203330).
    - CVE-2022-40133: Fixed a use-after-free vulnerability in vmwgfx driver that allowed a local attacker to     cause a denial of service (bsc#1203329).
    - CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate     privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
    - CVE-2023-3610: Fixed use-after-free vulnerability in nf_tables can be exploited to achieve local     privilege escalation (bsc#1213580).
    - CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN     privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service     (bsc#1213666).
    - CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user     with special privileges to impact a kernel information leak issue (bsc#1213601).
    - CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).
    - CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to     perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel     information leak issue (bsc#1214149).
    - CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
    - CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
    - CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1213968).
    - CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
    - CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged     attacker to overflow the kernel stack (bsc#1214120).
    - CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to     crash the system due to a double-free (bsc#1214350).
    - CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local     attacker with normal user privilege to cause a denial of service (bsc#1214451).
    - CVE-2023-4563: Fixed use-after-free in nft_verdict_dump due to a race between set GC and transaction     (bsc#1214727).
    - CVE-2023-4569: Fixed information leak in nft_set_catchall_flush in net/netfilter/nf_tables_api.c     (bsc#1214729).
    - CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return     speculative data resulting in loss of confidentiality (bsc#1213927).
    - CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).
    - CVE-2023-37453: Fixed oversight in SuperSpeed initialization  (bsc#1213123).


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 remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6445-1 advisory.

    It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash     collisions in connection lookup table. A remote attacker could use this to cause a denial of service     (excessive CPU consumption). (CVE-2023-1206)

    Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising     speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-     channel attack. A local attacker could use this to expose sensitive information, including kernel memory.
    (CVE-2023-20569)

    It was discovered that the IPv6 RPL protocol implementation in the Linux kernel did not properly handle     user-supplied data. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2023-2156)

    Davide Ornaghi discovered that the DECnet network protocol implementation in the Linux kernel contained a     null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. Please note that kernel support for the DECnet has been     removed to resolve this CVE. (CVE-2023-3338)

    Ross Lagerwall discovered that the Xen netback backend driver in the Linux kernel did not properly handle     certain unusual packets from a paravirtualized network frontend, leading to a buffer overflow. An attacker     in a guest VM could use this to cause a denial of service (host system crash) or possibly execute     arbitrary code. (CVE-2023-34319)

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate     command payload size, leading to a out-of-bounds read vulnerability. A remote attacker could possibly use     this to cause a denial of service (system crash). (CVE-2023-38432)

    It was discovered that the NFC implementation in the Linux kernel contained a use-after-free vulnerability     when performing peer-to-peer communication in certain conditions. A privileged attacker could use this to     cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).
    (CVE-2023-3863)

    Laurence Wit discovered that the KSMBD implementation in the Linux kernel did not properly validate a     buffer size in certain situations, leading to an out-of-bounds read vulnerability. A remote attacker could     use this to cause a denial of service (system crash) or possibly expose sensitive information.
    (CVE-2023-3865)

    Laurence Wit discovered that the KSMBD implementation in the Linux kernel contained a null pointer     dereference vulnerability when handling handling chained requests. A remote attacker could use this to     cause a denial of service (system crash). (CVE-2023-3866)

    It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel did not properly     handle device initialization failures in certain situations, leading to a use-after-free vulnerability. A     physically proximate attacker could use this cause a denial of service (system crash). (CVE-2023-4132)

    Andy Nguyen discovered that the KVM implementation for AMD processors in the Linux kernel with Secure     Encrypted Virtualization (SEV) contained a race condition when accessing the GHCB page. A local attacker     in a SEV guest VM could possibly use this to cause a denial of service (host system crash).
    (CVE-2023-4155)

    It was discovered that the TUN/TAP driver in the Linux kernel did not properly initialize socket data. A     local attacker could use this to cause a denial of service (system crash). (CVE-2023-4194)

    Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading     to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2023-4244)

    Maxim Suhanov discovered that the exFAT file system implementation in the Linux kernel did not properly     check a file name length, leading to an out- of-bounds write vulnerability. An attacker could use this to     construct a malicious exFAT image that, when mounted and operated on, could cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-4273)

    Kyle Zeng discovered that the networking stack implementation in the Linux kernel did not properly     validate skb object size in certain conditions. An attacker could use this cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-42752)

    Kyle Zeng discovered that the netfiler subsystem in the Linux kernel did not properly calculate array     offsets, leading to a out-of-bounds write vulnerability. A local user could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-42753)

    Kyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP) classifier implementation in the     Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to cause a     denial of service (system crash). Please note that kernel packet classifier support for RSVP has been     removed to resolve this vulnerability. (CVE-2023-42755)

    Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set     operations in certain situations. A local attacker could use this to cause a denial of service (system     crash). (CVE-2023-42756)

    Thelford Williams discovered that the Ceph file system messenger protocol implementation in the Linux     kernel did not properly validate frame segment length in certain situation, leading to a buffer overflow     vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-44466)

    Bing-Jhong Billy Jheng discovered that the Unix domain socket implementation in the Linux kernel contained     a race condition in certain situations, leading to a use-after-free vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4622)

    Budimir Markovic discovered that the qdisc implementation in the Linux kernel did not properly validate     inner classes, leading to a use-after-free vulnerability. A local user could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-4623)

    Alex Birnberg discovered that the netfilter subsystem in the Linux kernel did not properly validate     register length, leading to an out-of- bounds write vulnerability. A local attacker could possibly use     this to cause a denial of service (system crash). (CVE-2023-4881)

    It was discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel did not     properly handle network packets in certain conditions, leading to a use after free vulnerability. A local     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2023-4921)

    Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly handle removal of     rules from chain bindings in certain circumstances, leading to a use-after-free vulnerability. A local     attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code.
    (CVE-2023-5197)

Tenable has extracted the preceding description block directly from the Ubuntu 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.

  - A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to     bypass network filters and gain unauthorized access to some resources. The original patches fixing     CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits -     a096ccca6e50 (tun: tun_chr_open(): correctly initialize socket uid), - 66b2c338adce (tap: tap_open():
    correctly initialize socket uid), pass inode->i_uid to sock_init_data_uid() as the last parameter and     that turns out to not be accurate. (CVE-2023-4194)

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

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3392-1 advisory.

  - Information exposure through microarchitectural state after transient execution in certain vector     execution units for some Intel(R) Processors may allow an authenticated user to potentially enable     information disclosure via local access. (CVE-2022-40982)

  - Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec     allowing a user to bypass the access_ok check and pass a kernel pointer to copy_from_user(). This would     allow an attacker to leak information. We recommend upgrading beyond commit     74e19ef0ff8061ef55957c3abd71614ef0f42f47 (CVE-2023-0459)

  - A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address     prediction. This may result in speculative execution at an attacker-controlled?address, potentially     leading to information disclosure. (CVE-2023-20569)

  - An issue in Zen 2 CPUs, under specific microarchitectural circumstances, may allow an attacker to     potentially access sensitive information. (CVE-2023-20593)

  - 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 problem. (CVE-2023-2985)

  - A flaw in the Linux Kernel found in the GFS2 file system. On corrupted gfs2 file systems the evict code     can try to reference the journal descriptor structure, jdesc, after it has been freed and set to NULL. It     can lead to null pointer dereference when gfs2_trans_begin being called and then fail     ingfs2_evict_inode(). (CVE-2023-3212) (CVE-2023-34319)

  - Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register     contents when CAP_NET_ADMIN is in any user or network namespace (CVE-2023-35001)

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

  - A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to     achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return     an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability. We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.
    (CVE-2023-3609)

  - An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited     to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-     of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend     upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64. (CVE-2023-3611)

  - A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an     error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.
    (CVE-2023-3776)

  - A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the     cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This     flaw allows a local user to crash the system, causing a denial of service condition. (CVE-2023-4133)

  - A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to     bypass network filters and gain unauthorized access to some resources. The original patches fixing     CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits -     a096ccca6e50 (tun: tun_chr_open(): correctly initialize socket uid), - 66b2c338adce (tap: tap_open():
    correctly initialize socket uid), pass inode->i_uid to sock_init_data_uid() as the last parameter and     that turns out to not be accurate. (CVE-2023-4194)

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:6583 advisory.

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

    Security Fix(es):

    * kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)

    * kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and     cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)

    * kernel: eBPF: insufficient stack type checks in dynptr (CVE-2023-39191)

    * Kernel: race when faulting a device private page in memory manager (CVE-2022-3523)

    * kernel: use-after-free in l1oip timer handlers (CVE-2022-3565)

    * kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594)

    * kernel: vmwgfx: use-after-free in vmw_cmd_res_check (CVE-2022-38457)

    * kernel: vmwgfx: use-after-free in vmw_execbuf_tie_context (CVE-2022-40133)

    * hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

    * kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c (CVE-2022-42895)

    * kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597)

    * kernel: HID: check empty report_list in hid_validate_values() (CVE-2023-1073)

    * kernel: sctp: fail if no bound addresses can be used for a given scope (CVE-2023-1074)

    * kernel: hid: Use After Free in asus_remove() (CVE-2023-1079)

    * kernel: hash collisions in the IPv6 connection lookup table (CVE-2023-1206)

    * kernel: ovl: fix use after free in struct ovl_aio_req (CVE-2023-1252)

    * Kernel: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c (CVE-2023-1652)

    * kernel: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989)

    * kernel: fbcon: shift-out-of-bounds in fbcon_set_font() (CVE-2023-3161)

    * kernel: out-of-bounds access in relay_file_read (CVE-2023-3268)

    * kernel: xfrm: NULL pointer dereference in xfrm_update_ae_params() (CVE-2023-3772)

    * kernel: xfrm: out-of-bounds read of XFRMA_MTIMER_THRESH nlattr (CVE-2023-3773)

    * kernel: KVM: SEV-ES / SEV-SNP VMGEXIT double fetch vulnerability (CVE-2023-4155)

    * kernel: exFAT: stack overflow in exfat_get_uniname_from_ext_entry (CVE-2023-4273)

    * kernel: mpls: double free on sysctl allocation failure (CVE-2023-26545)

    * kernel: KVM: nVMX: missing consistency checks for CR0 and CR4 (CVE-2023-30456)

    * kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove() (CVE-2023-33203)

    * kernel: vmwgfx: race condition leading to information disclosure vulnerability (CVE-2023-33951)

    * kernel: vmwgfx: double free within the handling of vmw_buffer_object objects (CVE-2023-33952)

    * kernel: r592: race condition leading to use-after-free in r592_remove() (CVE-2023-35825)

    * kernel: net/tls: tls_is_tx_ready() checked list_entry (CVE-2023-1075)

    * kernel: tap: tap_open(): correctly initialize socket uid (CVE-2023-1076)

    * kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the     coredump code (CVE-2023-1249)

    * kernel: use-after-free bug in remove function xgene_hwmon_remove (CVE-2023-1855)

    * kernel: Use after free bug in r592_remove (CVE-2023-3141)

    * kernel: gfs2: NULL pointer dereference in gfs2_evict_inode() (CVE-2023-3212)

    * kernel: NULL pointer dereference due to missing kalloc() return value check in     shtp_cl_get_dma_send_buf() (CVE-2023-3358)

    * kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid     (CVE-2023-4194)

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

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3681-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local     attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
    - CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate     privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
    - CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN     privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service     (bsc#1213666).
    - CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that     could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213543).
    - CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user     with special privileges to impact a kernel information leak issue (bsc#1213601).
    - CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to     perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel     information leak issue (bsc#1214149).
    - CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a     local user to crash the system, causing a denial of service condition (bsc#1213969).
    - CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
    - CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
    - CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
    - CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to     crash the system due to a missing sanity check (bsc#1214348).
    - CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to     crash the system due to a double-free (bsc#1214350).
    - CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local     attacker with normal user privilege to cause a denial of service (bsc#1214451).
    - CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return     speculative data resulting in loss of confidentiality (bsc#1213927).
    - CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).
    - CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).


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 remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3682-1 advisory.

    The SUSE Linux Enterprise 15 SP4 Azure kernel was updated to receive various security and bugfixes.


    The following security bugs were fixed:

    - CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate     privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
    - CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return     speculative data resulting in loss of confidentiality (bsc#1213927).
    - CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).
    - CVE-2023-3610: Fixed use-after-free vulnerability in nf_tables can be exploited to achieve local     privilege escalation (bsc#1213580).
    - CVE-2023-37453: Fixed oversight in SuperSpeed initialization  (bsc#1213123).
    - CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN     privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service     (bsc#1213666).
    - CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user     with special privileges to impact a kernel information leak issue (bsc#1213601).
    - CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to     perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel     information leak issue (bsc#1214149).
    - CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
    - CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
    - CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1213968).
    - CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
    - CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged     attacker to overflow the kernel stack (bsc#1214120).
    - CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to     crash the system due to a double-free (bsc#1214350).
    - CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local     attacker with normal user privilege to cause a denial of service (bsc#1214451).
    - CVE-2023-4569: Fixed information leak in nft_set_catchall_flush in net/netfilter/nf_tables_api.c     (bsc#1214729).


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 remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6416-1 advisory.

    It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash     collisions in connection lookup table. A remote attacker could use this to cause a denial of service     (excessive CPU consumption). (CVE-2023-1206)

    Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising     speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-     channel attack. A local attacker could use this to expose sensitive information, including kernel memory.
    (CVE-2023-20569)

    It was discovered that the IPv6 RPL protocol implementation in the Linux kernel did not properly handle     user-supplied data. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2023-2156)

    Davide Ornaghi discovered that the DECnet network protocol implementation in the Linux kernel contained a     null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. Please note that kernel support for the DECnet has been     removed to resolve this CVE. (CVE-2023-3338)

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate     command payload size, leading to a out-of-bounds read vulnerability. A remote attacker could possibly use     this to cause a denial of service (system crash). (CVE-2023-38432)

    It was discovered that the NFC implementation in the Linux kernel contained a use-after-free vulnerability     when performing peer-to-peer communication in certain conditions. A privileged attacker could use this to     cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).
    (CVE-2023-3863)

    Laurence Wit discovered that the KSMBD implementation in the Linux kernel did not properly validate a     buffer size in certain situations, leading to an out-of-bounds read vulnerability. A remote attacker could     use this to cause a denial of service (system crash) or possibly expose sensitive information.
    (CVE-2023-3865)

    Laurence Wit discovered that the KSMBD implementation in the Linux kernel contained a null pointer     dereference vulnerability when handling handling chained requests. A remote attacker could use this to     cause a denial of service (system crash). (CVE-2023-3866)

    It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel did not properly     handle device initialization failures in certain situations, leading to a use-after-free vulnerability. A     physically proximate attacker could use this cause a denial of service (system crash). (CVE-2023-4132)

    Andy Nguyen discovered that the KVM implementation for AMD processors in the Linux kernel with Secure     Encrypted Virtualization (SEV) contained a race condition when accessing the GHCB page. A local attacker     in a SEV guest VM could possibly use this to cause a denial of service (host system crash).
    (CVE-2023-4155)

    It was discovered that the TUN/TAP driver in the Linux kernel did not properly initialize socket data. A     local attacker could use this to cause a denial of service (system crash). (CVE-2023-4194)

    Maxim Suhanov discovered that the exFAT file system implementation in the Linux kernel did not properly     check a file name length, leading to an out- of-bounds write vulnerability. An attacker could use this to     construct a malicious exFAT image that, when mounted and operated on, could cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-4273)

    Thelford Williams discovered that the Ceph file system messenger protocol implementation in the Linux     kernel did not properly validate frame segment length in certain situation, leading to a buffer overflow     vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-44466)

Tenable has extracted the preceding description block directly from the Ubuntu 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 :

    A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in     VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash     the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a     kernel information leak problem.(CVE-2023-4387)

    A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in     the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with     normal user privilege to cause a denial of service due to a missing sanity check during     cleanup.(CVE-2023-4459)

    A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system     (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing     sanity check.(CVE-2023-4385)

    A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs     during device initialization when the siano device is plugged in. This flaw allows a local user to crash     the system, causing a denial of service condition.(CVE-2023-4132)

    A buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This     flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network     packets to the backend, causing the backend to crash.(CVE-2023-34319)

    A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel.
    This flaw allows a local user with special privileges to impact a kernel information leak     issue.(CVE-2023-3863)

    An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvb_net.c has a     .disconnect versus dvb_device_open race condition that leads to a use-after-free.(CVE-2022-45886)

    In multiple functions of binder.c, there is a possible memory corruption due to a use after free. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation.(CVE-2023-21255)

    A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue     could allow a remote user to crash the system.(CVE-2023-3338)

    A null pointer dereference was found in the Linux kernel's Integrated Sensor Hub (ISH) driver. This issue     could allow a local user to crash the system.(CVE-2023-3358)

    A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in     the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to     incorrect handling of the existing filter, leading to a kernel information leak issue.(CVE-2023-4128)

    A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to     bypass network filters and gain unauthorized access to some resources. The original patches fixing     CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits -     a096ccca6e50 ('tun: tun_chr_open(): correctly initialize socket uid'), - 66b2c338adce ('tap: tap_open():
    correctly initialize socket uid'), pass 'inode-i_uid' to sock_init_data_uid() as the last parameter and     that turns out to not be accurate.(CVE-2023-4194)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation.If tcf_change_indev() fails, fw_set_parms() will immediately return an     error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability.We recommend upgrading past commit     0323bce598eea038714f941ce2b22541c46d488f.(CVE-2023-3776)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to     achieve local privilege escalation.If tcf_change_indev() fails, u32_set_parms() will immediately return an     error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability.We recommend upgrading past commit     04c55383fa5689357bcdd2c8036725a55ed632bc.(CVE-2023-3609)

    A flaw was found in the Linux kernels IP framework for transforming packets (XFRM subsystem). This     issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in     xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.(CVE-2023-3772)

    An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited     to achieve local privilege escalation.The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-     of-bounds write because lmax is updated according to packet sizes without bounds checks.We recommend     upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.(CVE-2023-3611)

    Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register     contents when CAP_NET_ADMIN is in any user or network namespace(CVE-2023-35001)

    A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in     net/netfilter/nf_tables_api.c.Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a     dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local     attacker with user access to cause a privilege escalation issue.We recommend upgrading past     commit1240eb93f0616b21c675416516ff3d74798fdc97.(CVE-2023-3390)

    A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernels IPv6     functionality when a user makes a new kind of SYN flood attack. A user located in the local network or     with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up     to 95%.(CVE-2023-1206)

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.

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

    A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers     et/vmxnet3/vmxnet3_drv.c in VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could     allow a local attacker to crash the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all,     which could also lead to a kernel information leak problem.(CVE-2023-4387)

    A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers     et/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may     allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity     check during cleanup.(CVE-2023-4459)

    A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system     (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing     sanity check.(CVE-2023-4385)

    A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs     during device initialization when the siano device is plugged in. This flaw allows a local user to crash     the system, causing a denial of service condition.(CVE-2023-4132)

    A known cache speculation vulnerability, known as Branch History Injection (BHI) or Spectre-BHB, becomes     actual again for the new hw AmpereOne. Spectre-BHB is similar to Spectre v2, except that malicious code     uses the shared branch history (stored in the CPU Branch History Buffer, or BHB) to influence mispredicted     branches within the victim's hardware context. Once that occurs, speculation caused by the mispredicted     branches can cause cache allocation. This issue leads to obtaining information that should not be     accessible.(CVE-2023-3006)

    A buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This     flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network     packets to the backend, causing the backend to crash.(CVE-2023-34319)

    A use-after-free flaw was found in nfc_llcp_find_local in net     fc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact     a kernel information leak issue.(CVE-2023-3863)

    An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvb_net.c has a     .disconnect versus dvb_device_open race condition that leads to a use-after-free.(CVE-2022-45886)

    In multiple functions of binder.c, there is a possible memory corruption due to a use after free. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation.(CVE-2023-21255)

    A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue     could allow a remote user to crash the system.(CVE-2023-3338)

    An issue was discovered in the Linux kernel through 6.1-rc8. dpu_crtc_atomic_check in     drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c lacks check of the return value of kzalloc() and will cause the     NULL Pointer Dereference.(CVE-2023-3220)

    A null pointer dereference was found in the Linux kernel's Integrated Sensor Hub (ISH) driver. This issue     could allow a local user to crash the system.(CVE-2023-3358)

    An issue was discovered in the Linux kernel before 6.3.2. A use-after-free was found in     renesas_usb3_remove in drivers/usb/gadget/udc/renesas_usb3.c.(CVE-2023-35828)

    A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in     the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to     incorrect handling of the existing filter, leading to a kernel information leak issue.(CVE-2023-4128)

    A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to     bypass network filters and gain unauthorized access to some resources. The original patches fixing     CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits -     a096ccca6e50 ('tun: tun_chr_open(): correctly initialize socket uid'), - 66b2c338adce ('tap: tap_open():
    correctly initialize socket uid'), pass 'inode-i_uid' to sock_init_data_uid() as the last parameter and     that turns out to not be accurate.(CVE-2023-4194)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation.If tcf_change_indev() fails, fw_set_parms() will immediately return an     error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability.We recommend upgrading past commit     0323bce598eea038714f941ce2b22541c46d488f.(CVE-2023-3776)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to     achieve local privilege escalation.If tcf_change_indev() fails, u32_set_parms() will immediately return an     error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can     control the reference counter and set it to zero, they can cause the reference to be freed, leading to a     use-after-free vulnerability.We recommend upgrading past commit     04c55383fa5689357bcdd2c8036725a55ed632bc.(CVE-2023-3609)

    A flaw was found in the Linux kernels IP framework for transforming packets (XFRM subsystem). This     issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in     xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.(CVE-2023-3772)

    An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited     to achieve local privilege escalation.The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-     of-bounds write because lmax is updated according to packet sizes without bounds checks.We recommend     upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.(CVE-2023-3611)

    Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register     contents when CAP_NET_ADMIN is in any user or network namespace(CVE-2023-35001)

    A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net     etfilter     f_tables_api.c.Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer     in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with     user access to cause a privilege escalation issue.We recommend upgrading past     commit1240eb93f0616b21c675416516ff3d74798fdc97.(CVE-2023-3390)

    A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernels IPv6     functionality when a user makes a new kind of SYN flood attack. A user located in the local network or     with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up     to 95%.(CVE-2023-1206)

    An out-of-bounds memory access flaw was found in the Linux kernels XFS file system in how a user     restores an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or     potentially escalate their privileges on the system.(CVE-2023-2124)

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.

ID	Name	Product	Family	Published	Updated	Severity
181457	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2023:3599-1)	Nessus	SuSE Local Security Checks	9/15/2023	9/24/2025	high
183459	Ubuntu 22.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6445-1)	Nessus	Ubuntu Local Security Checks	10/20/2023	9/24/2025	critical
226420	Linux Distros Unpatched Vulnerability : CVE-2023-4194	Nessus	Misc.	3/5/2025	9/5/2025	medium
180153	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2023:3392-1)	Nessus	SuSE Local Security Checks	8/24/2023	3/31/2025	high
194262	RHEL 9 : kernel (RHSA-2023:6583)	Nessus	Red Hat Local Security Checks	4/28/2024	10/28/2025	high
181659	SUSE SLES12 Security Update : kernel (SUSE-SU-2023:3681-1)	Nessus	SuSE Local Security Checks	9/20/2023	9/24/2025	high
181667	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2023:3682-1)	Nessus	SuSE Local Security Checks	9/20/2023	9/24/2025	high
182558	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6416-1)	Nessus	Ubuntu Local Security Checks	10/4/2023	8/27/2024	critical
188789	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2023-2898)	Nessus	Huawei Local Security Checks	1/16/2024	9/29/2025	high
188804	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2023-2879)	Nessus	Huawei Local Security Checks	1/16/2024	9/29/2025	high

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