In the Linux kernel, the following vulnerability has been resolved: cifs: fix mid leak during reconnection after timeout threshold When the number of responses with status of STATUS_IO_TIMEOUT exceeds a specified threshold (NUM_STATUS_IO_TIMEOUT), we reconnect the connection. But we do not return the mid, or the credits returned for the mid, or reduce the number of in-flight requests. This bug could result in the server->in_flight count to go bad, and also cause a leak in the mids. This change moves the check to a few lines below where the response is decrypted, even of the response is read from the transform header. This way, the code for returning the mids can be reused. Also, the cifs_reconnect was reconnecting just the transport connection before. In case of multi-channel, this may not be what we want to do after several timeouts. Changed that to reconnect the session and the tree too. Also renamed NUM_STATUS_IO_TIMEOUT to a more appropriate name MAX_STATUS_IO_TIMEOUT.

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

  - cifs: fix mid leak during reconnection after timeout threshold When the number of responses with status of     STATUS_IO_TIMEOUT exceeds a specified threshold (NUM_STATUS_IO_TIMEOUT), we reconnect the connection. But     we do not return the mid, or the credits returned for the mid, or reduce the number of in-flight requests.
    This bug could result in the server->in_flight count to go bad, and also cause a leak in the mids. This     change moves the check to a few lines below where the response is decrypted, even of the response is read     from the transform header. This way, the code for returning the mids can be reused. Also, the     cifs_reconnect was reconnecting just the transport connection before. In case of multi-channel, this may     not be what we want to do after several timeouts. Changed that to reconnect the session and the tree too.
    Also renamed NUM_STATUS_IO_TIMEOUT to a more appropriate name MAX_STATUS_IO_TIMEOUT. (CVE-2023-53597)

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

The version of kernel installed on the remote host is prior to 5.15.152-100.162. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2024-058 advisory.

    A flaw was found in the smb client in the Linux kernel. A potential out-of-bounds error was seen in the     smb2_parse_contexts() function. Validate offsets and lengths before dereferencing create contexts in     smb2_parse_contexts(). (CVE-2023-52434)

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

    netfilter: nf_tables: disallow timeout for anonymous sets (CVE-2023-52620)

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

    fs/ntfs3: Fix oob in ntfs_listxattr (CVE-2023-52640)

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

    fs/ntfs3: Add NULL ptr dereference checking at the end of attr_allocate_frame() (CVE-2023-52641)

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

    igb: Fix igb_down hung on surprise removal (CVE-2023-53148)

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

    md/raid10: prevent soft lockup while flush writes (CVE-2023-53151)

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

    sched/fair: Don't balance task to its current running CPU (CVE-2023-53215)

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

    cifs: fix mid leak during reconnection after timeout threshold (CVE-2023-53597)

    A null pointer dereference flaw was found in the hugetlbfs_fill_super function in the Linux kernel     hugetlbfs (HugeTLB pages) functionality. This issue may allow a local user to crash the system or     potentially escalate their privileges on the system. (CVE-2024-0841)

    A vulnerability was discovered in the Linux kernel's IPv4 networking stack. Under certain conditions,     MPTCP and NetLabel can be configured in a way that triggers a double free memory error in     net/ipv4/af_inet.c:inet_sock_destruct(). This may lead to a system crash, denial of service, or potential     arbitrary code execution. (CVE-2024-1627)

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

    ext4: regenerate buddy after block freeing failed if under fc replay

    This mostly reverts commit 6bd97bf273bd (ext4: remove redundantmb_regenerate_buddy()) and reintroduces     mb_regenerate_buddy(). Based oncode in mb_free_blocks(), fast commit replay can end up marking as     freeblocks that are already marked as such. This causes corruption of thebuddy bitmap so we need to     regenerate it in that case. (CVE-2024-26601)

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

    x86/fpu: Stop relying on userspace for info to fault in xsave buffer

    Before this change, the expected size of the user space buffer wastaken from fx_sw->xstate_size.
    fx_sw->xstate_size can be changedfrom user-space, so it is possible construct a sigreturn frame where:

    * fx_sw->xstate_size is smaller than the size required by valid bits infx_sw->xfeatures.* user-space     unmaps parts of the sigrame fpu buffer so that not all ofthe buffer required by xrstor is accessible.

    In this case, xrstor tries to restore and accesses the unmapped areawhich results in a fault. But     fault_in_readable succeeds because buf +fx_sw->xstate_size is within the still mapped area, so it goes     back andtries xrstor again. It will spin in this loop forever.

    Instead, fault in the maximum size which can be touched by XRSTOR (takenfrom fpstate->user_size).

    [ dhansen: tweak subject / changelog ] (CVE-2024-26603)

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

    xhci: handle isoc Babble and Buffer Overrun events properly (CVE-2024-26659)

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

    fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super (CVE-2024-26688)

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

    arp: Prevent overflow in arp_req_get(). (CVE-2024-26733)

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

    ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735)

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

    bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel (CVE-2024-26737)

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

    af_unix: Drop oob_skb ref before purging queue in GC. (CVE-2024-26750)

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

    gtp: fix use-after-free and null-ptr-deref in gtp_genl_dump_pdp() (CVE-2024-26754)

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

    dm-crypt: don't modify the data when using authenticated encryption (CVE-2024-26763)

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

    fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio (CVE-2024-26764)

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

    ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal() (CVE-2024-26772)

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

    ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() (CVE-2024-26773)

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

    ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt (CVE-2024-26774)

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

    mptcp: fix double-free on socket dismantle (CVE-2024-26782)

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

    btrfs: dev-replace: properly validate device names (CVE-2024-26791)

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

    gtp: fix use-after-free and null-ptr-deref in gtp_newlink() (CVE-2024-26793)

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

    fbcon: always restore the old font data in fbcon_do_set_font() (CVE-2024-26798)

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

    net: veth: clear GRO when clearing XDP even when down (CVE-2024-26803)

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

    net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804)

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

    netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter (CVE-2024-26805)

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

    hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed (CVE-2024-26820)

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

    netfilter: nf_tables: set dormant flag on hook register failure (CVE-2024-26835)

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

    cachefiles: fix memory leak in cachefiles_add_cache() (CVE-2024-26840)

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

    efi: runtime: Fix potential overflow of soft-reserved region size (CVE-2024-26843)

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

    scsi: target: core: Add TMF to tmr_list handling (CVE-2024-26845)

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

    netfilter: nf_conntrack_h323: Add protection for bmp length out of range (CVE-2024-26851)

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

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

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

    geneve: make sure to pull inner header in geneve_rx() (CVE-2024-26857)

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

    net/rds: fix WARNING in rds_conn_connect_if_down (CVE-2024-27024)

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

    netfilter: nft_flow_offload: reset dst in route object after setting up flow (CVE-2024-27403)

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

    efi/capsule-loader: fix incorrect allocation size (CVE-2024-27413)

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

    rtnetlink: fix error logic of IFLA_BRIDGE_FLAGS writing back (CVE-2024-27414)

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

    netfilter: bridge: confirm multicast packets before passing them up the stack (CVE-2024-27415)

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

    ipv6: fix potential struct net leak in inet6_rtm_getaddr() (CVE-2024-27417)

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

    cpumap: Zero-initialise xdp_rxq_info struct before running XDP program (CVE-2024-27431)

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

    tls: stop recv() if initial process_rx_list gave us non-DATA (CVE-2024-58239)

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 ALAS2023-2023-330 advisory.

    A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss     of confidentiality. (CVE-2023-20588)

    The fix for XSA-423 added logic to Linux'es netback driver to deal witha frontend splitting a packet in a     way such that not all of the headerswould come in one piece.  Unfortunately the logic introduced     theredidn't account for the extreme case of the entire packet being splitinto as many pieces as permitted     by the protocol, yet still beingsmaller than the area that's specially dealt with to keep all     (possible)headers together.  Such an unusual packet would therefore trigger abuffer overrun in the driver.
    (CVE-2023-34319)

    A flaw was found in the Linux kernel's 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)

    A flaw was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue     may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of     XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data     to userspace. (CVE-2023-3773)

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

    When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the     chain's owner rule can also release the objects in certain circumstances.

    We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8. (CVE-2023-3777)

    A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing     of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local     privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an     information disclosure. (CVE-2023-39194)

    A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the     nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local     user to crash the system or potentially escalate their privileges on the system. (CVE-2023-4004)

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

    On an error when building a nftables rule, deactivating immediate expressions in     nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used.

    We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2. (CVE-2023-4015)

    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)

    netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID (CVE-2023-4147)

    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_route component can be exploited to     achieve local privilege escalation.

    When route4_change() is called on an existing filter, the whole tcf_result struct is always copied into     the new instance of the filter. This causes a problem when updating a filter bound to a class, as     tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the     still referenced class and allowing it to be deleted, leading to a use-after-free.

    We recommend upgrading past commit b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8. (CVE-2023-4206)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation.

    When fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the     new instance of the filter. This causes a problem when updating a filter bound to a class, as     tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the     still referenced class and allowing it to be deleted, leading to a use-after-free.

    We recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec. (CVE-2023-4207)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to     achieve local privilege escalation.

    When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the     new instance of the filter. This causes a problem when updating a filter bound to a class, as     tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the     still referenced class and allowing it to be deleted, leading to a use-after-free.

    We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81. (CVE-2023-4208)

    A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation     of the file name reconstruction function, which is responsible for reading file name entries from a     directory index and merging file name parts belonging to one file into a single long file name. Since the     file name characters are copied into a stack variable, a local privileged attacker could use this flaw to     overflow the kernel stack. (CVE-2023-4273)

    A memory leak flaw was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux     Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which     can result in a memory leak. (CVE-2023-4569)

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

    The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without     locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that     is being released by garbage collection, resulting in use-after-free.

    We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

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

    xfrm: add NULL check in xfrm_update_ae_params (CVE-2023-53147)

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

    igb: Fix igb_down hung on surprise removal (CVE-2023-53148)

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

    udf: Fix uninitialized array access for some pathnames (CVE-2023-53165)

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

    scsi: core: Fix possible memory leak if device_add() fails (CVE-2023-53174)

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

    dma-buf/dma-resv: Stop leaking on krealloc() failure (CVE-2023-53181)

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

    btrfs: exit gracefully if reloc roots don't match (CVE-2023-53183)

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

    vxlan: Fix nexthop hash size (CVE-2023-53192)

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

    sched/fair: Don't balance task to its current running CPU (CVE-2023-53215)

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

    smb: client: fix warning in cifs_smb3_do_mount() (CVE-2023-53230)

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

    scsi: storvsc: Fix handling of virtual Fibre Channel timeouts (CVE-2023-53245)

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

    btrfs: set_page_extent_mapped after read_folio in btrfs_cont_expand (CVE-2023-53247)

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

    ovl: fix null pointer dereference in ovl_permission() (CVE-2023-53260)

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

    drm/client: Fix memory leak in drm_client_modeset_probe (CVE-2023-53288)

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

    netfilter: nft_set_rbtree: fix overlap expiration walk (CVE-2023-53304)

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

    nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput (CVE-2023-53311)

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

    fs/ntfs3: Enhance sanity check while generating attr_list (CVE-2023-53328)

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

    btrfs: fix BUG_ON condition in btrfs_cancel_balance (CVE-2023-53339)

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

    ip6mr: Fix skb_under_panic in ip6mr_cache_report() (CVE-2023-53365)

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

    net: dcb: choose correct policy to parse DCB_ATTR_BCN (CVE-2023-53369)

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

    mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() (CVE-2023-53401)

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

    drm/ttm: fix bulk_move corruption when adding a entry (CVE-2023-53444)

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

    af_unix: Fix null-ptr-deref in unix_stream_sendpage(). (CVE-2023-53469)

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

    powerpc/rtas_flash: allow user copy to flash block cache objects (CVE-2023-53487)

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

    mptcp: fix disconnect vs accept race (CVE-2023-53490)

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

    xfrm: fix slab-use-after-free in decode_session6 (CVE-2023-53500)

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

    virtio-mmio: don't break lifecycle of vm_dev (CVE-2023-53515)

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

    rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic() (CVE-2023-53558)

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

    ip_vti: fix potential slab-use-after-free in decode_session6 (CVE-2023-53559)

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

    bpf, cpumap: Make sure kthread is running before map update returns (CVE-2023-53577)

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

    cifs: Release folio lock on fscache read hit. (CVE-2023-53593)

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

    cifs: fix mid leak during reconnection after timeout threshold (CVE-2023-53597)

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

    tunnels: fix kasan splat when generating ipv4 pmtu error (CVE-2023-53600)

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

    btrfs: reject invalid reloc tree root keys with stack dump (CVE-2023-53618)

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

    bpf, cpumap: Handle skb as well when clean up ptr_ring (CVE-2023-53660)

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
269429	Linux Distros Unpatched Vulnerability : CVE-2023-53597	Nessus	Misc.	low
213366	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2024-058 (ALASKERNEL-5.15-2024-058)	Nessus	Amazon Linux Local Security Checks	high
181159	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-330)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2023-53597

high

Tenable Plugins

low

high

high