In the Linux kernel, the following vulnerability has been resolved: tracing: Have trace_event_file have ref counters The following can crash the kernel: # cd /sys/kernel/tracing # echo 'p:sched schedule' > kprobe_events # exec 5>>events/kprobes/sched/enable # > kprobe_events # exec 5>&- The above commands: 1. Change directory to the tracefs directory 2. Create a kprobe event (doesn't matter what one) 3. Open bash file descriptor 5 on the enable file of the kprobe event 4. Delete the kprobe event (removes the files too) 5. Close the bash file descriptor 5 The above causes a crash! BUG: kernel NULL pointer dereference, address: 0000000000000028 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 6 PID: 877 Comm: bash Not tainted 6.5.0-rc4-test-00008-g2c6b6b1029d4-dirty #186 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:tracing_release_file_tr+0xc/0x50 What happens here is that the kprobe event creates a trace_event_file "file" descriptor that represents the file in tracefs to the event. It maintains state of the event (is it enabled for the given instance?). Opening the "enable" file gets a reference to the event "file" descriptor via the open file descriptor. When the kprobe event is deleted, the file is also deleted from the tracefs system which also frees the event "file" descriptor. But as the tracefs file is still opened by user space, it will not be totally removed until the final dput() is called on it. But this is not true with the event "file" descriptor that is already freed. If the user does a write to or simply closes the file descriptor it will reference the event "file" descriptor that was just freed, causing a use-after-free bug. To solve this, add a ref count to the event "file" descriptor as well as a new flag called "FREED". The "file" will not be freed until the last reference is released. But the FREE flag will be set when the event is removed to prevent any more modifications to that event from happening, even if there's still a reference to the event "file" descriptor.

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

  - In the Linux kernel, the following vulnerability has been resolved: tracing: Have trace_event_file have     ref counters The following can crash the kernel: # cd /sys/kernel/tracing # echo 'p:sched schedule' >     kprobe_events # exec 5>>events/kprobes/sched/enable # > kprobe_events # exec 5>&- The above commands: 1.
    Change directory to the tracefs directory 2. Create a kprobe event (doesn't matter what one) 3. Open bash     file descriptor 5 on the enable file of the kprobe event 4. Delete the kprobe event (removes the files     too) 5. Close the bash file descriptor 5 The above causes a crash! BUG: kernel NULL pointer dereference,     address: 0000000000000028 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present     page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 6 PID: 877 Comm: bash Not tainted     6.5.0-rc4-test-00008-g2c6b6b1029d4-dirty #186 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS     1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:tracing_release_file_tr+0xc/0x50 What happens here is that the     kprobe event creates a trace_event_file file descriptor that represents the file in tracefs to the     event. It maintains state of the event (is it enabled for the given instance?). Opening the enable file     gets a reference to the event file descriptor via the open file descriptor. When the kprobe event is     deleted, the file is also deleted from the tracefs system which also frees the event file descriptor.
    But as the tracefs file is still opened by user space, it will not be totally removed until the final     dput() is called on it. But this is not true with the event file descriptor that is already freed. If     the user does a write to or simply closes the file descriptor it will reference the event file     descriptor that was just freed, causing a use-after-free bug. To solve this, add a ref count to the event     file descriptor as well as a new flag called FREED. The file will not be freed until the last     reference is released. But the FREE flag will be set when the event is removed to prevent any more     modifications to that event from happening, even if there's still a reference to the event file     descriptor. (CVE-2023-52879)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2896-1 advisory.

    The SUSE Linux Enterprise 15 SP6 Azure kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2024-41014: xfs: add bounds checking to xlog_recover_process_data (bsc#1228408).
    - CVE-2024-41013: xfs: do not walk off the end of a directory data block (bsc#1228405).
    - CVE-2024-41017: jfs: do not walk off the end of ealist (bsc#1228403).
    - CVE-2024-40972: ext4: fold quota accounting into ext4_xattr_inode_lookup_create() (bsc#1227910).
    - CVE-2024-39276: ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find() (bsc#1226993).
    - CVE-2024-40925: block: fix request.queuelist usage in flush (bsc#1227789).
    - CVE-2024-40998: ext4: fix uninitialized ratelimit_state->lock access in __ext4_fill_super()     (bsc#1227866).
    - CVE-2024-39494: ima: Fix use-after-free on a dentry's dname.name (bsc#1227716).
    - CVE-2024-39496: btrfs: zoned: fix use-after-free due to race with dev replace (bsc#1227719).
    - CVE-2024-41091: tun: add missing verification for short frame (bsc#1228327).
    - CVE-2024-41090: tap: add missing verification for short frame (bsc#1228328).
    - CVE-2024-40999: net: ena: Add validation for completion descriptors consistency (bsc#1227913).
    - CVE-2024-40966: kABI: tty: add the option to have a tty reject a new ldisc (bsc#1227886).
    - CVE-2024-40975: platform/x86: x86-android-tablets: Unregister devices in reverse order (bsc#1227926).
    - CVE-2024-40970: Avoid hw_desc array overrun in dw-axi-dmac (bsc#1227899).
    - CVE-2024-40947: ima: Avoid blocking in RCU read-side critical section (bsc#1227803).
    - CVE-2024-40908: bpf: Set run context for rawtp test_run callback (bsc#1227783).
    - CVE-2024-40960: ipv6: prevent possible NULL dereference in rt6_probe() (bsc#1227813).
    - CVE-2024-40935: cachefiles: flush all requests after setting CACHEFILES_DEAD (bsc#1227797).
    - CVE-2024-40961: ipv6: prevent possible NULL deref in fib6_nh_init() (bsc#1227814).
    - CVE-2024-39504: netfilter: nft_inner: validate mandatory meta and payload (bsc#1227757).
    - CVE-2024-41006: netrom: Fix a memory leak in nr_heartbeat_expiry() (bsc#1227862).
    - CVE-2024-40937: gve: Clear napi->skb before dev_kfree_skb_any() (bsc#1227836).
    - CVE-2024-39507: net: hns3: fix kernel crash problem in concurrent scenario (bsc#1227730).
    - CVE-2024-40940: net/mlx5: Fix tainted pointer delete is case of flow rules creation fail (bsc#1227800).
    - CVE-2024-40928: net: ethtool: fix the error condition in ethtool_get_phy_stats_ethtool() (bsc#1227788).
    - CVE-2024-26944: btrfs: zoned: fix lock ordering in btrfs_zone_activate() (bsc#1223731).
    - CVE-2024-40923: vmxnet3: disable rx data ring on dma allocation failure (bsc#1227786).
    - CVE-2024-40931: mptcp: ensure snd_una is properly initialized on connect (bsc#1227780).
    - CVE-2024-40919: bnxt_en: Adjust logging of firmware messages in case of released token in __hwrm_send()     (bsc#1227779).
    - CVE-2024-39487: bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() (bsc#1227573)
    - CVE-2024-35908: tls: get psock ref after taking rxlock to avoid leak (bsc#1224490)
    - CVE-2024-35899: netfilter: nf_tables: flush pending destroy work before exit_net release (bsc#1224499)
    - CVE-2024-35934: net/smc: reduce rtnl pressure in smc_pnet_create_pnetids_list() (bsc#1224641)
    - CVE-2024-35893: net/sched: act_skbmod: prevent kernel-infoleak (bsc#1224512)
    - CVE-2024-40901: scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory (bsc#1227762).
    - CVE-2024-39472: xfs: fix log recovery buffer allocation for the legacy h_size fixup (bsc#1227432).
    - CVE-2024-40953: KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() (bsc#1227806).
    - CVE-2024-27404: mptcp: fix data races on remote_id (bsc#1224422)
    - CVE-2024-27020: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() (bsc#1223815)
    - CVE-2024-27019: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() (bsc#1223813)
    - CVE-2024-40948: mm/page_table_check: fix crash on ZONE_DEVICE (bsc#1227801).
    - CVE-2024-35890: gro: fix ownership transfer (bsc#1224516).
    - CVE-2024-36902: ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() (bsc#1225719).
    - CVE-2024-36946: phonet: fix rtm_phonet_notify() skb allocation (bsc#1225851).
    - CVE-2024-38586: r8169: Fix possible ring buffer corruption on fragmented Tx packets (bsc#1226750).
    - CVE-2024-39468: smb: client: fix deadlock in smb2_find_smb_tcon() (bsc#1227103.
    - CVE-2024-40906: net/mlx5: Always stop health timer during driver removal (bsc#1227763).
    - CVE-2024-27012: netfilter: nf_tables: restore set elements when delete set fails (bsc#1223804).
    - CVE-2024-39498: drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2 (bsc#1227723)
    - CVE-2024-39502: ionic: fix use after netif_napi_del() (bsc#1227755).
    - CVE-2024-27016: netfilter: flowtable: validate pppoe header (bsc#1223807).
    - CVE-2024-36901: ipv6: prevent NULL dereference in ip6_output() (bsc#1225711)
    - CVE-2024-36004: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (bsc#1224545)
    - CVE-2024-27025: nbd: null check for nla_nest_start (bsc#1223778)
    - CVE-2024-35853: mlxsw: spectrum_acl_tcam: Fix memory leak during rehash (bsc#1224604).
    - CVE-2024-35854: Fixed possible use-after-free during rehash (bsc#1224636).
    - CVE-2024-27402: phonet/pep: fix racy skb_queue_empty() use (bsc#1224414).
    - CVE-2023-52435: net: prevent mss overflow in skb_segment() (bsc#1220138).
    - CVE-2024-27065: netfilter: nf_tables: do not compare internal table flags on updates (bsc#1223836).
    - CVE-2024-27015: netfilter: flowtable: incorrect pppoe tuple (bsc#1223806).
    - CVE-2024-27064: netfilter: nf_tables: Fix a memory leak in nf_tables_updchain (bsc#1223740).
    - CVE-2024-26663: tipc: Check the bearer type before calling tipc_udp_nl_bearer_add() (bsc#1222326).
    - CVE-2023-47210: wifi: iwlwifi: bump FW API to 90 for BZ/SC devices (bsc#1225601, bsc#1225600).
    - CVE-2023-52775: net/smc: avoid data corruption caused by decline (bsc#1225088).
    - CVE-2024-38558: net: openvswitch: fix overwriting ct original tuple for ICMPv6 (bsc#1226783).
    - CVE-2024-39490: ipv6: sr: fix missing sk_buff release in seg6_input_core (bsc#1227626).
    - CVE-2024-26826: mptcp: fix data re-injection from stale subflow (bsc#1223010).
    - CVE-2024-26615: net/smc: fix illegal rmb_desc access in SMC-D connection dump (bsc#1220942).
    - CVE-2024-35942: pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain (bsc#1224589).
    - CVE-2024-26691: KVM: arm64: Fix circular locking dependency (bsc#1222463).
    - CVE-2024-36909: Drivers: hv: vmbus: Do not free ring buffers that couldn't be re-encrypted     (bsc#1225744).
    - CVE-2024-36910: uio_hv_generic: Do not free decrypted memory (bsc#1225717).
    - CVE-2024-36911: hv_netvsc: Do not free decrypted memory (bsc#1225745).
    - CVE-2024-36912: Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl (bsc#1225752).
    - CVE-2024-36913: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails (bsc#1225753).
    - CVE-2024-26665: tunnels: fix out of bounds access when building IPv6 PMTU error (bsc#1222328).
    - CVE-2024-38659: enic: Validate length of nl attributes in enic_set_vf_port (bsc#1226883).
    - CVE-2023-52751: smb: client: fix use-after-free in smb2_query_info_compound() (bsc#1225489).
    - CVE-2024-39482: bcache: fix variable length array abuse in btree_iter (bsc#1227447).
    - CVE-2024-39474: mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL (bsc#1227434).
    - CVE-2024-26636: llc: make llc_ui_sendmsg() more robust against bonding changes (bsc#1221659).
    - CVE-2024-26635: llc: Drop support for ETH_P_TR_802_2 (bsc#1221656).
    - CVE-2024-38598: md: fix resync softlockup when bitmap size is less than array size (bsc#1226757).
    - CVE-2024-36003: ice: fix LAG and VF lock dependency in ice_reset_vf() (bsc#1224544).
    - CVE-2024-38604: block: refine the EOF check in blkdev_iomap_begin (bsc#1226866).
    - CVE-2024-26641: ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv() (bsc#1221654).
    - CVE-2024-26863: hsr: Fix uninit-value access in hsr_get_node() (bsc#1223021).
    - CVE-2024-26633: ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim() (bsc#1221647).
    - CVE-2024-26623: pds_core: Prevent race issues involving the adminq (bsc#1221057).
    - CVE-2024-26785: iommufd: Fix protection fault in iommufd_test_syz_conv_iova (bsc#1222779).
    - CVE-2024-26734: devlink: fix possible use-after-free and memory leaks in devlink_init() (bsc#1222438).
    - CVE-2024-35805: dm snapshot: fix lockup in dm_exception_table_exit (bsc#1224743).
    - CVE-2024-39371: io_uring: check for non-NULL file pointer in io_file_can_poll() (bsc#1226990).
    - CVE-2023-52846: hsr: Prevent use after free in prp_create_tagged_frame() (bsc#1225098).
    - CVE-2024-38610: drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map() (bsc#1226758).
    - CVE-2024-37354: btrfs: fix crash on racing fsync and size-extending write into prealloc (bsc#1227101).
    - CVE-2024-36919: scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload (bsc#1225767).
    - CVE-2024-38559: scsi: qedf: Ensure the copied buf is NUL terminated (bsc#1226785).
    - CVE-2024-38570: gfs2: Fix potential glock use-after-free on unmount (bsc#1226775).
    - CVE-2024-36904: tcp: Use refcount_inc_not_zero() in tcp_twsk_unique() (bsc#1225732).
    - CVE-2023-52881: tcp: do not accept ACK of bytes we never sent (bsc#1225611).
    - CVE-2024-37353: virtio: fixed a double free in vp_del_vqs() (bsc#1226875).
    - CVE-2024-39301: net/9p: fix uninit-value in p9_client_rpc() (bsc#1226994).
    - CVE-2024-35843: iommu/vt-d: Use device rbtree in iopf reporting path (bsc#1224751).
    - CVE-2024-37078: nilfs2: fix potential kernel bug due to lack of writeback flag waiting (bsc#1227066).
    - CVE-2024-35247: fpga: region: add owner module and take its refcount (bsc#1226948).
    - CVE-2024-36479: fpga: bridge: add owner module and take its refcount (bsc#1226949).
    - CVE-2024-37021: fpga: manager: add owner module and take its refcount (bsc#1226950).
    - CVE-2024-36281: net/mlx5: Use mlx5_ipsec_rx_status_destroy to correctly delete status rules     (bsc#1226799).
    - CVE-2024-38580: epoll: be better about file lifetimes (bsc#1226610).
    - CVE-2024-36478: null_blk: fix null-ptr-dereference while configuring 'power' and 'submit_queues'     (bsc#1226841).
    - CVE-2024-38636: f2fs: multidev: fix to recognize valid zero block address (bsc#1226879).
    - CVE-2024-38661: s390/ap: Fix crash in AP internal function modify_bitmap() (bsc#1226996).
    - CVE-2024-38564: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE     (bsc#1226789).
    - CVE-2024-38566: bpf: Fix verifier assumptions about socket->sk (bsc#1226790).
    - CVE-2024-38560: scsi: bfa: Ensure the copied buf is NUL terminated (bsc#1226786).
    - CVE-2024-36978: net: sched: sch_multiq: fix possible OOB write in multiq_tune() (bsc#1226514).
    - CVE-2024-36917: block: fix overflow in blk_ioctl_discard() (bsc#1225770).
    - CVE-2024-36974: net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP (bsc#1226519).
    - CVE-2024-38627: stm class: Fix a double free in stm_register_device() (bsc#1226857).
    - CVE-2024-38603: drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset() (bsc#1226842).
    - CVE-2024-38553: net: fec: remove .ndo_poll_controller to avoid deadlock (bsc#1226744).
    - CVE-2024-38555: net/mlx5: Discard command completions in internal error (bsc#1226607).
    - CVE-2024-38556: net/mlx5: Add a timeout to acquire the command queue semaphore (bsc#1226774).
    - CVE-2024-38557: net/mlx5: Reload only IB representors upon lag disable/enable (bsc#1226781).
    - CVE-2024-38608: net/mlx5e: Fix netif state handling (bsc#1226746).
    - CVE-2024-38597: eth: sungem: remove .ndo_poll_controller to avoid deadlocks (bsc#1226749).
    - CVE-2024-38594: net: stmmac: move the EST lock to struct stmmac_priv (bsc#1226734).
    - CVE-2024-38569: drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group (bsc#1226772).
    - CVE-2024-38568: drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group (bsc#1226771).
    - CVE-2024-26814: vfio/fsl-mc: Block calling interrupt handler without trigger (bsc#1222810).
    - CVE-2024-26813: vfio/platform: Create persistent IRQ handlers (bsc#1222809).
    - CVE-2024-36945: net/smc: fix neighbour and rtable leak in smc_ib_find_route() (bsc#1225823).
    - CVE-2024-36923: fs/9p: fix uninitialized values during inode evict (bsc#1225815).
    - CVE-2024-36971: net: fix __dst_negative_advice() race (bsc#1226145).
    - CVE-2024-27414: rtnetlink: fix error logic of IFLA_BRIDGE_FLAGS writing back (bsc#1224439).
    - CVE-2024-35900: netfilter: nf_tables: reject new basechain after table flag update (bsc#1224497).
    - CVE-2024-35886: ipv6: Fix infinite recursion in fib6_dump_done() (bsc#1224670).
    - CVE-2024-36024: drm/amd/display: Disable idle reallow as part of command/gpint execution (bsc#1225702).
    - CVE-2024-36903: ipv6: Fix potential uninit-value access in __ip6_make_skb() (bsc#1225741).
    - CVE-2024-36914: drm/amd/display: Skip on writeback when it's not applicable (bsc#1225757).
    - CVE-2024-36899: gpiolib: cdev: Fix use after free in lineinfo_changed_notify (bsc#1225737).
    - CVE-2024-35979: raid1: fix use-after-free for original bio in raid1_write_request() (bsc#1224572).
    - CVE-2024-35807: ext4: fix corruption during on-line resize (bsc#1224735).
    - CVE-2023-52622: ext4: avoid online resizing failures due to oversized flex bg (bsc#1222080).
    - CVE-2023-52843: llc: verify mac len before reading mac header (bsc#1224951).
    - CVE-2024-35898: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get()     (bsc#1224498).
    - CVE-2024-36915: nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies (bsc#1225758).
    - CVE-2024-36017: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation (bsc#1225681).
    - CVE-2024-36882: mm: use memalloc_nofs_save() in page_cache_ra_order() (bsc#1225723).
    - CVE-2024-36916: blk-iocost: avoid out of bounds shift (bsc#1225759).
    - CVE-2024-36900: net: hns3: fix kernel crash when devlink reload during initialization (bsc#1225726).
    - CVE-2023-52787: blk-mq: make sure active queue usage is held for bio_integrity_prep() (bsc#1225105).
    - CVE-2024-35925: block: prevent division by zero in blk_rq_stat_sum() (bsc#1224661).
    - CVE-2023-52837: nbd: fix uaf in nbd_open (bsc#1224935).
    - CVE-2023-52786: ext4: fix racy may inline data check in dio write (bsc#1224939).
    - CVE-2024-36934: bna: ensure the copied buf is NUL terminated (bsc#1225760).
    - CVE-2024-36935: ice: ensure the copied buf is NUL terminated (bsc#1225763).
    - CVE-2024-36937: xdp: use flags field to disambiguate broadcast redirect (bsc#1225834).
    - CVE-2023-52672: pipe: wakeup wr_wait after setting max_usage (bsc#1224614).
    - CVE-2023-52845: tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING (bsc#1225585).
    - CVE-2024-36005: netfilter: nf_tables: honor table dormant flag from netdev release event path     (bsc#1224539).
    - CVE-2024-26845: scsi: target: core: Add TMF to tmr_list handling (bsc#1223018).
    - CVE-2024-35892: net/sched: fix lockdep splat in qdisc_tree_reduce_backlog() (bsc#1224515).
    - CVE-2024-35848: eeprom: at24: fix memory corruption race condition (bsc#1224612).
    - CVE-2024-35884: udp: do not accept non-tunnel GSO skbs landing in a tunnel (bsc#1224520).
    - CVE-2024-35857: icmp: prevent possible NULL dereferences from icmp_build_probe() (bsc#1224619).
    - CVE-2023-52735: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself (bsc#1225475).
    - CVE-2024-35926: crypto: iaa - Fix async_disable descriptor leak (bsc#1224655).
    - CVE-2024-35976: Validate user input for XDP_{UMEM|COMPLETION}_FILL_RING (bsc#1224575).
    - CVE-2024-36938: Fixed NULL pointer dereference in sk_psock_skb_ingress_enqueue (bsc#1225761).
    - CVE-2024-36008: ipv4: check for NULL idev in ip_route_use_hint() (bsc#1224540).
    - CVE-2024-35998: Fixed lock ordering potential deadlock in cifs_sync_mid_result (bsc#1224549).
    - CVE-2023-52757: Fixed potential deadlock when releasing mids (bsc#1225548).
    - CVE-2024-27419: Fixed data-races around sysctl_net_busy_read (bsc#1224759)
    - CVE-2024-36957: octeontx2-af: avoid off-by-one read from userspace (bsc#1225762).
    - CVE-2024-26625: Call sock_orphan() at release time (bsc#1221086)
    - CVE-2024-35880: io_uring/kbuf: hold io_buffer_list reference over mmap (bsc#1224523).
    - CVE-2024-35831: io_uring: Fix release of pinned pages when __io_uaddr_map fails (bsc#1224698).
    - CVE-2024-35827: io_uring/net: fix overflow check in io_recvmsg_mshot_prep() (bsc#1224606).
    - CVE-2023-52656: Dropped any code related to SCM_RIGHTS (bsc#1224187).
    - CVE-2023-52699: sysv: don't call sb_bread() with pointers_lock held (bsc#1224659).


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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2571-1 advisory.

    The SUSE Linux Enterprise 15 SP6 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2024-39371: io_uring: check for non-NULL file pointer in io_file_can_poll() (bsc#1226990).
    - CVE-2023-52846: hsr: Prevent use after free in prp_create_tagged_frame() (bsc#1225098).
    - CVE-2024-38610: drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map() (bsc#1226758).
    - CVE-2024-37354: btrfs: fix crash on racing fsync and size-extending write into prealloc (bsc#1227101).
    - CVE-2024-36919: scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload (bsc#1225767).
    - CVE-2024-38559: scsi: qedf: Ensure the copied buf is NUL terminated (bsc#1226785).
    - CVE-2024-38570: gfs2: Fix potential glock use-after-free on unmount (bsc#1226775).
    - CVE-2024-36904: tcp: Use refcount_inc_not_zero() in tcp_twsk_unique() (bsc#1225732).
    - CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
    - CVE-2024-38545: RDMA/hns: Fix UAF for cq async event (bsc#1226595).
    - CVE-2023-52834: atl1c: Work around the DMA RX overflow issue (bsc#1225599).
    - CVE-2023-52875: Add check for mtk_alloc_clk_data (bsc#1225096).
    - CVE-2023-52865: Add check for mtk_alloc_clk_data (bsc#1225086).
    - CVE-2023-52821: Fixed a possible null pointer dereference (bsc#1225022).
    - CVE-2023-52867: Fixed possible buffer overflow (bsc#1225009).
    - CVE-2024-38578: ecryptfs: Fix buffer size for tag 66 packet (bsc#1226634,).
    - CVE-2024-36964: fs/9p: only translate RWX permissions for plain 9P2000 (bsc#1225866).
    - CVE-2023-52759: Ignore negated quota changes (bsc#1225560).
    - CVE-2023-52796: Add ipvlan_route_v6_outbound() helper (bsc#1224930).
    - CVE-2023-52807: Fixed out-of-bounds access may occur when coalesce info is read via debugfs     (bsc#1225097).
    - CVE-2023-52864: Fixed opening of char device (bsc#1225132).
    - CVE-2024-36926: Fixed LPAR panics during boot up with a frozen PE (bsc#1222011).
    - CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
    - CVE-2023-52795: Fixed use after free in vhost_vdpa_probe() (bsc#1225085).
    - CVE-2023-52881: tcp: do not accept ACK of bytes we never sent (bsc#1225611).
    - CVE-2024-37353: virtio: fixed a double free in vp_del_vqs() (bsc#1226875).
    - CVE-2024-39301: net/9p: fix uninit-value in p9_client_rpc() (bsc#1226994).
    - CVE-2024-35843: iommu/vt-d: Use device rbtree in iopf reporting path (bsc#1224751).
    - CVE-2024-37078: nilfs2: fix potential kernel bug due to lack of writeback flag waiting (bsc#1227066).
    - CVE-2024-35247: fpga: region: add owner module and take its refcount (bsc#1226948).
    - CVE-2024-36479: fpga: bridge: add owner module and take its refcount (bsc#1226949).
    - CVE-2024-37021: fpga: manager: add owner module and take its refcount (bsc#1226950).
    - CVE-2024-36281: net/mlx5: Use mlx5_ipsec_rx_status_destroy to correctly delete status rules     (bsc#1226799).
    - CVE-2024-38580: epoll: be better about file lifetimes (bsc#1226610).
    - CVE-2024-36478: null_blk: fix null-ptr-dereference while configuring 'power' and 'submit_queues'     (bsc#1226841).
    - CVE-2024-38636: f2fs: multidev: fix to recognize valid zero block address (bsc#1226879).
    - CVE-2024-38661: s390/ap: Fix crash in AP internal function modify_bitmap() (bsc#1226996).
    - CVE-2024-38564: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE     (bsc#1226789).
    - CVE-2024-38560: scsi: bfa: Ensure the copied buf is NUL terminated (bsc#1226786).
    - CVE-2024-36978: net: sched: sch_multiq: fix possible OOB write in multiq_tune() (bsc#1226514).
    - CVE-2024-36917: block: fix overflow in blk_ioctl_discard() (bsc#1225770).
    - CVE-2024-38627: stm class: Fix a double free in stm_register_device() (bsc#1226857).
    - CVE-2024-38603: drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset() (bsc#1226842).
    - CVE-2024-38553: net: fec: remove .ndo_poll_controller to avoid deadlock (bsc#1226744).
    - CVE-2024-38555: net/mlx5: Discard command completions in internal error (bsc#1226607).
    - CVE-2024-38556: net/mlx5: Add a timeout to acquire the command queue semaphore (bsc#1226774).
    - CVE-2024-38557: net/mlx5: Reload only IB representors upon lag disable/enable (bsc#1226781).
    - CVE-2024-38608: net/mlx5e: Fix netif state handling (bsc#1226746).
    - CVE-2024-38597: eth: sungem: remove .ndo_poll_controller to avoid deadlocks (bsc#1226749).
    - CVE-2024-38594: net: stmmac: move the EST lock to struct stmmac_priv (bsc#1226734).
    - CVE-2024-38569: drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group (bsc#1226772).
    - CVE-2024-38568: drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group (bsc#1226771).
    - CVE-2024-26814: vfio/fsl-mc: Block calling interrupt handler without trigger (bsc#1222810).
    - CVE-2024-26813: vfio/platform: Create persistent IRQ handlers (bsc#1222809).
    - CVE-2024-36945: net/smc: fix neighbour and rtable leak in smc_ib_find_route() (bsc#1225823).
    - CVE-2024-36923: fs/9p: fix uninitialized values during inode evict (bsc#1225815).
    - CVE-2024-36971: net: fix __dst_negative_advice() race (bsc#1226145).
    - CVE-2024-27414: rtnetlink: fix error logic of IFLA_BRIDGE_FLAGS writing back (bsc#1224439).
    - CVE-2024-35886: ipv6: Fix infinite recursion in fib6_dump_done() (bsc#1224670).
    - CVE-2024-36024: drm/amd/display: Disable idle reallow as part of command/gpint execution (bsc#1225702).
    - CVE-2024-36903: ipv6: Fix potential uninit-value access in __ip6_make_skb() (bsc#1225741).
    - CVE-2024-36899: gpiolib: cdev: Fix use after free in lineinfo_changed_notify (bsc#1225737).
    - CVE-2024-35979: raid1: fix use-after-free for original bio in raid1_write_request() (bsc#1224572).
    - CVE-2024-35807: ext4: fix corruption during on-line resize (bsc#1224735).
    - CVE-2023-52622: ext4: avoid online resizing failures due to oversized flex bg (bsc#1222080).
    - CVE-2023-52843: llc: verify mac len before reading mac header (bsc#1224951).
    - CVE-2024-35898: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get()     (bsc#1224498).
    - CVE-2024-36915: nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies (bsc#1225758).
    - CVE-2024-36882: mm: use memalloc_nofs_save() in page_cache_ra_order() (bsc#1225723).
    - CVE-2024-36916: blk-iocost: avoid out of bounds shift (bsc#1225759).
    - CVE-2024-36900: net: hns3: fix kernel crash when devlink reload during initialization (bsc#1225726).
    - CVE-2023-52787: blk-mq: make sure active queue usage is held for bio_integrity_prep() (bsc#1225105).
    - CVE-2024-35925: block: prevent division by zero in blk_rq_stat_sum() (bsc#1224661).
    - CVE-2023-52837: nbd: fix uaf in nbd_open (bsc#1224935).
    - CVE-2023-52786: ext4: fix racy may inline data check in dio write (bsc#1224939).
    - CVE-2024-36934: bna: ensure the copied buf is NUL terminated (bsc#1225760).
    - CVE-2024-36935: ice: ensure the copied buf is NUL terminated (bsc#1225763).
    - CVE-2024-36937: xdp: use flags field to disambiguate broadcast redirect (bsc#1225834).
    - CVE-2023-52672: pipe: wakeup wr_wait after setting max_usage (bsc#1224614).
    - CVE-2023-52845: tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING (bsc#1225585).
    - CVE-2024-36005: netfilter: nf_tables: honor table dormant flag from netdev release event path     (bsc#1224539).
    - CVE-2024-26845: scsi: target: core: Add TMF to tmr_list handling (bsc#1223018).
    - CVE-2024-35892: net/sched: fix lockdep splat in qdisc_tree_reduce_backlog() (bsc#1224515).
    - CVE-2024-35848: eeprom: at24: fix memory corruption race condition (bsc#1224612).
    - CVE-2024-35884: udp: do not accept non-tunnel GSO skbs landing in a tunnel (bsc#1224520).
    - CVE-2024-35857: icmp: prevent possible NULL dereferences from icmp_build_probe() (bsc#1224619).
    - CVE-2023-52735: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself (bsc#1225475).
    - CVE-2024-35926: crypto: iaa - Fix async_disable descriptor leak (bsc#1224655).
    - CVE-2024-35976: Validate user input for XDP_{UMEM|COMPLETION}_FILL_RING (bsc#1224575).
    - CVE-2024-36938: Fixed NULL pointer dereference in sk_psock_skb_ingress_enqueue (bsc#1225761).
    - CVE-2024-36008: ipv4: check for NULL idev in ip_route_use_hint() (bsc#1224540).
    - CVE-2024-35998: Fixed lock ordering potential deadlock in  cifs_sync_mid_result (bsc#1224549).
    - CVE-2023-52757: Fixed potential deadlock when releasing mids (bsc#1225548).
    - CVE-2024-27419: Fixed data-races around sysctl_net_busy_read (bsc#1224759)
    - CVE-2024-36957: octeontx2-af: avoid off-by-one read from userspace (bsc#1225762).
    - CVE-2024-26625: Call sock_orphan() at release time (bsc#1221086)
    - CVE-2024-35880: io_uring/kbuf: hold io_buffer_list reference over mmap (bsc#1224523).
    - CVE-2024-35831: io_uring: Fix release of pinned pages when __io_uaddr_map fails (bsc#1224698).
    - CVE-2024-35827: io_uring/net: fix overflow check in io_recvmsg_mshot_prep() (bsc#1224606).
    - CVE-2023-52656: Dropped any code related to SCM_RIGHTS (bsc#1224187).
    - CVE-2023-52699: sysv: don't call sb_bread() with pointers_lock held (bsc#1224659).


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 5.10.205-195.804. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2024-045 advisory.

    A race condition leading to a use-after-free issue was found in the QXL driver in the Linux kernel.
    (CVE-2023-39198)

    An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an     io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur. (CVE-2023-46862)

    When a router encounters an IPv6 packet too big to transmit to the next-hop, it returns an ICMP6 Packet     Too Big (PTB) message to the sender. The sender caches this updated Maximum Transmission Unit (MTU) so it     knows not to exceed this value when subsequently routing to the same host.

    In Linux kernels prior to 6.3, garbage collection is run on the IPv6 Destination Route Cache if the number     of entries exceeds a threshold when adding the destination to the cache. This garbage collection examines     every entry in the cache while holding a lock. In these affected kernel versions, a flood of the IPv6     ICMP6 PTB messages could cause high lock contention and increased CPU usage, leading to a Denial-of-     Service.

    The fix backports the garbage collection improvements from Linux kernel 6.3 by bringing the IPv6 code     closer to the IPv4 code, which does not have this issue.

    Patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=af6d10345ca76670c1b7c3     7799f0d5576ccef277 (CVE-2023-52340)

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

    io_uring/af_unix: disable sending io_uring over sockets (CVE-2023-52654)

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

    gfs2: ignore negated quota changes (CVE-2023-52759)

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

    usb: config: fix iteration issue in 'usb_get_bos_descriptor()' (CVE-2023-52781)

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

    bonding: stop the device in bond_setup_by_slave() (CVE-2023-52784)

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

    i2c: core: Run atomic i2c xfer when !preemptible (CVE-2023-52791)

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

    ipvlan: add ipvlan_route_v6_outbound() helper (CVE-2023-52796)

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

    SUNRPC: Fix RPC client cleaned up the freed pipefs dentries (CVE-2023-52803)

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

    scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() (CVE-2023-52809)

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

    crypto: pcrypt - Fix hungtask for PADATA_RESET (CVE-2023-52813)

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

    drm/amdgpu: Fix potential null pointer derefernce (CVE-2023-52814)

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

    drm/amd: Fix UBSAN array-index-out-of-bounds for SMU7 (CVE-2023-52818)

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

    drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga (CVE-2023-52819)

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

    bpf: Detect IP == ksym.end as part of BPF program (CVE-2023-52828)

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

    perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

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

    tracing: Have trace_event_file have ref counters (CVE-2023-52879)

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

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

    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg).
    (CVE-2023-6121)

    A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's     deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
    (CVE-2023-6531)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double     deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.

    We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a. (CVE-2023-6817)

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.

    A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in     perf_read_group().

    We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)

    A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation.

    A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object     which is freed by another thread.

    We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

    A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak. (CVE-2024-0584)

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 5.15.145-95.156. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2024-033 advisory.

    An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an     io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur. (CVE-2023-46862)

    When a router encounters an IPv6 packet too big to transmit to the next-hop, it returns an ICMP6 Packet     Too Big (PTB) message to the sender. The sender caches this updated Maximum Transmission Unit (MTU) so it     knows not to exceed this value when subsequently routing to the same host.

    In Linux kernels prior to 6.3, garbage collection is run on the IPv6 Destination Route Cache if the number     of entries exceeds a threshold when adding the destination to the cache. This garbage collection examines     every entry in the cache while holding a lock. In these affected kernel versions, a flood of the IPv6     ICMP6 PTB messages could cause high lock contention and increased CPU usage, leading to a Denial-of-     Service.

    The fix backports the garbage collection improvements from Linux kernel 6.3 by bringing the IPv6 code     closer to the IPv4 code, which does not have this issue.

    Patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=af6d10345ca76670c1b7c3     7799f0d5576ccef277 (CVE-2023-52340)

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

    io_uring/af_unix: disable sending io_uring over sockets (CVE-2023-52654)

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

    virtio-blk: fix implicit overflow on virtio_max_dma_size (CVE-2023-52762)

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

    af_unix: fix use-after-free in unix_stream_read_actor() (CVE-2023-52772)

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

    usb: config: fix iteration issue in 'usb_get_bos_descriptor()' (CVE-2023-52781)

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

    bonding: stop the device in bond_setup_by_slave() (CVE-2023-52784)

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

    i915/perf: Fix NULL deref bugs with drm_dbg() calls (CVE-2023-52788)

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

    i2c: core: Run atomic i2c xfer when !preemptible (CVE-2023-52791)

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

    ipvlan: add ipvlan_route_v6_outbound() helper (CVE-2023-52796)

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

    SUNRPC: Fix RPC client cleaned up the freed pipefs dentries (CVE-2023-52803)

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

    crypto: pcrypt - Fix hungtask for PADATA_RESET (CVE-2023-52813)

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

    bpf: Detect IP == ksym.end as part of BPF program (CVE-2023-52828)

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

    perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

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

    tracing: Have trace_event_file have ref counters (CVE-2023-52879)

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

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

    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg).
    (CVE-2023-6121)

    A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's     deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
    (CVE-2023-6531)

    A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in     nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to     trigger a denial of service. (CVE-2023-6622)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double     deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.

    We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a. (CVE-2023-6817)

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.

    A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in     perf_read_group().

    We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)

    A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation.

    A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object     which is freed by another thread.

    We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

    A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak. (CVE-2024-0584)

    netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() (CVE-2024-0607)

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 5.4.265-176.364. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2024-057 advisory.

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

    netfilter: nf_tables: double hook unregistration in netns path (CVE-2022-49558)

    A race condition leading to a use-after-free issue was found in the QXL driver in the Linux kernel.
    (CVE-2023-39198)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage     collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.

    We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8. (CVE-2023-4244)

    When a router encounters an IPv6 packet too big to transmit to the next-hop, it returns an ICMP6 Packet     Too Big (PTB) message to the sender. The sender caches this updated Maximum Transmission Unit (MTU) so it     knows not to exceed this value when subsequently routing to the same host.

    In Linux kernels prior to 6.3, garbage collection is run on the IPv6 Destination Route Cache if the number     of entries exceeds a threshold when adding the destination to the cache. This garbage collection examines     every entry in the cache while holding a lock. In these affected kernel versions, a flood of the IPv6     ICMP6 PTB messages could cause high lock contention and increased CPU usage, leading to a Denial-of-     Service.

    The fix backports the garbage collection improvements from Linux kernel 6.3 by bringing the IPv6 code     closer to the IPv4 code, which does not have this issue.

    Patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=af6d10345ca76670c1b7c3     7799f0d5576ccef277 (CVE-2023-52340)

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

    netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction

    New elements in this transaction might expired before such transactionends. Skip sync GC for such elements     otherwise commit path might walkover an already released object. Once transaction is finished, async     GCwill collect such expired element. (CVE-2023-52433)

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

    io_uring/af_unix: disable sending io_uring over sockets (CVE-2023-52654)

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

    gfs2: ignore negated quota changes (CVE-2023-52759)

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

    bonding: stop the device in bond_setup_by_slave() (CVE-2023-52784)

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

    i2c: core: Run atomic i2c xfer when !preemptible (CVE-2023-52791)

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

    ipvlan: add ipvlan_route_v6_outbound() helper (CVE-2023-52796)

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

    scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() (CVE-2023-52809)

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

    crypto: pcrypt - Fix hungtask for PADATA_RESET (CVE-2023-52813)

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

    drm/amd: Fix UBSAN array-index-out-of-bounds for SMU7 (CVE-2023-52818)

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

    drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga (CVE-2023-52819)

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

    perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

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

    tracing: Have trace_event_file have ref counters (CVE-2023-52879)

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

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

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

    netfilter: nf_tables: adapt set backend to use GC transaction API (CVE-2023-52923)

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

    netfilter: nf_tables: don't skip expired elements during walk (CVE-2023-52924)

    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg).
    (CVE-2023-6121)

    A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's     deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
    (CVE-2023-6531)

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.

    A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in     perf_read_group().

    We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)

    A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation.

    A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object     which is freed by another thread.

    We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

    A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak. (CVE-2024-0584)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-461 advisory.

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

    lib/generic-radix-tree.c: Don't overflow in peek() (CVE-2021-47432)

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

    smb: client: fix use-after-free bug in cifs_debug_data_proc_show() (CVE-2023-52752)

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

    smb: client: fix potential deadlock when releasing mids (CVE-2023-52757)

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

    virtio-blk: fix implicit overflow on virtio_max_dma_size (CVE-2023-52762)

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

    af_unix: fix use-after-free in unix_stream_read_actor() (CVE-2023-52772)

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

    mptcp: deal with large GSO size (CVE-2023-52778)

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

    usb: config: fix iteration issue in 'usb_get_bos_descriptor()' (CVE-2023-52781)

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

    bonding: stop the device in bond_setup_by_slave() (CVE-2023-52784)

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

    i915/perf: Fix NULL deref bugs with drm_dbg() calls (CVE-2023-52788)

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

    i2c: core: Run atomic i2c xfer when !preemptible (CVE-2023-52791)

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

    ipvlan: add ipvlan_route_v6_outbound() helper (CVE-2023-52796)

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

    SUNRPC: Fix RPC client cleaned up the freed pipefs dentries (CVE-2023-52803)

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

    crypto: pcrypt - Fix hungtask for PADATA_RESET (CVE-2023-52813)

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

    bpf: Detect IP == ksym.end as part of BPF program (CVE-2023-52828)

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

    cpu/hotplug: Don't offline the last non-isolated CPU (CVE-2023-52831)

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

    perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835)

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

    nbd: fix uaf in nbd_open (CVE-2023-52837)

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

    Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() (CVE-2023-52840)

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

    llc: verify mac len before reading mac header (CVE-2023-52843)

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

    hsr: Prevent use after free in prp_create_tagged_frame() (CVE-2023-52846)

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

    padata: Fix refcnt handling in padata_free_shell() (CVE-2023-52854)

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

    perf: hisi: Fix use-after-free when register pmu fails (CVE-2023-52859)

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

    drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process     (CVE-2023-52860)

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

    platform/x86: wmi: Fix opening of char device (CVE-2023-52864)

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

    thermal: core: prevent potential string overflow (CVE-2023-52868)

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

    pstore/platform: Add check for kstrdup (CVE-2023-52869)

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

    tracing: Have trace_event_file have ref counters (CVE-2023-52879)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the     argument sync is true, making it possible to free a catchall set element many times.

    We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630. (CVE-2023-6111)

    A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in     nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to     trigger a denial of service. (CVE-2023-6622)

    A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation.

    A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object     which is freed by another thread.

    We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

    A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak. (CVE-2024-0584)

    netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() (CVE-2024-0607)

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
226897	Linux Distros Unpatched Vulnerability : CVE-2023-52879	Nessus	Misc.	medium
206008	SUSE SLES15 Security Update : kernel (SUSE-SU-2024:2973-1)	Nessus	SuSE Local Security Checks	high
205492	SUSE SLES15 Security Update : kernel (SUSE-SU-2024:2896-1)	Nessus	SuSE Local Security Checks	high
202999	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2024:2571-1)	Nessus	SuSE Local Security Checks	high
187779	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2024-045)	Nessus	Amazon Linux Local Security Checks	high
187777	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2024-033)	Nessus	Amazon Linux Local Security Checks	high
187776	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2024-057)	Nessus	Amazon Linux Local Security Checks	high
186974	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-461)	Nessus	Amazon Linux Local Security Checks	high

Detections

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CVE-2023-52879

medium

Tenable Plugins

medium

high

high

high

high

high

high

high