In the Linux kernel, the following vulnerability has been resolved: mm/page_owner: use strscpy() instead of strlcpy() current->comm[] is not a string (no guarantee for a zero byte in it). strlcpy(s1, s2, l) is calling strlen(s2), potentially causing out-of-bound access, as reported by syzbot: detected buffer overflow in __fortify_strlen ------------[ cut here ]------------ kernel BUG at lib/string_helpers.c:980! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4087 Comm: dhcpcd-run-hooks Not tainted 5.18.0-rc3-syzkaller-01537-g20b87e7c29df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fortify_panic+0x18/0x1a lib/string_helpers.c:980 Code: 8c e8 c5 ba e1 fa e9 23 0f bf fa e8 0b 5d 8c f8 eb db 55 48 89 fd e8 e0 49 40 f8 48 89 ee 48 c7 c7 80 f5 26 8a e8 99 09 f1 ff <0f> 0b e8 ca 49 40 f8 48 8b 54 24 18 4c 89 f1 48 c7 c7 00 00 27 8a RSP: 0018:ffffc900000074a8 EFLAGS: 00010286 RAX: 000000000000002c RBX: ffff88801226b728 RCX: 0000000000000000 RDX: ffff8880198e0000 RSI: ffffffff81600458 RDI: fffff52000000e87 RBP: ffffffff89da2aa0 R08: 000000000000002c R09: 0000000000000000 R10: ffffffff815fae2e R11: 0000000000000000 R12: ffff88801226b700 R13: ffff8880198e0830 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5876ad6ff8 CR3: 000000001a48c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: <IRQ> __fortify_strlen include/linux/fortify-string.h:128 [inline] strlcpy include/linux/fortify-string.h:143 [inline] __set_page_owner_handle+0x2b1/0x3e0 mm/page_owner.c:171 __set_page_owner+0x3e/0x50 mm/page_owner.c:190 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272 alloc_slab_page mm/slub.c:1799 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x8df/0xf20 mm/slub.c:3005 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092 slab_alloc_node mm/slub.c:3183 [inline] slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline] kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242 dst_alloc+0x146/0x1f0 net/core/dst.c:92

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

  - mm/page_owner: use strscpy() instead of strlcpy() current->comm[] is not a string (no guarantee for a zero     byte in it). strlcpy(s1, s2, l) is calling strlen(s2), potentially causing out-of-bound access, as     reported by syzbot: detected buffer overflow in __fortify_strlen ------------[ cut here ]------------     kernel BUG at lib/string_helpers.c:980! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4087 Comm:
    dhcpcd-run-hooks Not tainted 5.18.0-rc3-syzkaller-01537-g20b87e7c29df #0 Hardware name: Google Google     Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fortify_panic+0x18/0x1a     lib/string_helpers.c:980 Code: 8c e8 c5 ba e1 fa e9 23 0f bf fa e8 0b 5d 8c f8 eb db 55 48 89 fd e8 e0 49     40 f8 48 89 ee 48 c7 c7 80 f5 26 8a e8 99 09 f1 ff <0f> 0b e8 ca 49 40 f8 48 8b 54 24 18 4c 89 f1 48 c7 c7     00 00 27 8a RSP: 0018:ffffc900000074a8 EFLAGS: 00010286 RAX: 000000000000002c RBX: ffff88801226b728 RCX:
    0000000000000000 RDX: ffff8880198e0000 RSI: ffffffff81600458 RDI: fffff52000000e87 RBP: ffffffff89da2aa0     R08: 000000000000002c R09: 0000000000000000 R10: ffffffff815fae2e R11: 0000000000000000 R12:
    ffff88801226b700 R13: ffff8880198e0830 R14: 0000000000000000 R15: 0000000000000000 FS:
    0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0:
    0000000080050033 CR2: 00007f5876ad6ff8 CR3: 000000001a48c000 CR4: 00000000003506f0 DR0: 0000000000000000     DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000600 Call Trace: <IRQ> __fortify_strlen include/linux/fortify-string.h:128 [inline] strlcpy     include/linux/fortify-string.h:143 [inline] __set_page_owner_handle+0x2b1/0x3e0 mm/page_owner.c:171
    __set_page_owner+0x3e/0x50 mm/page_owner.c:190 prep_new_page mm/page_alloc.c:2441 [inline]     get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4182 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5408     alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272 alloc_slab_page mm/slub.c:1799 [inline]     allocate_slab+0x26c/0x3c0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x8df/0xf20     mm/slub.c:3005 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3092 slab_alloc_node mm/slub.c:3183 [inline]     slab_alloc mm/slub.c:3225 [inline] __kmem_cache_alloc_lru mm/slub.c:3232 [inline]     kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3242 dst_alloc+0x146/0x1f0 net/core/dst.c:92 (CVE-2022-49401)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7077 advisory.

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

    Security Fix(es):

    * kernel: tun: avoid double free in tun_free_netdev (CVE-2022-4744)

    * kernel: net/sched: multiple vulnerabilities (CVE-2023-3609, CVE-2023-3611, CVE-2023-4128, CVE-2023-4206,     CVE-2023-4207, CVE-2023-4208)

    * kernel: out-of-bounds write in qfq_change_class function (CVE-2023-31436)

    * kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait (CVE-2021-43975)

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

    * kernel: use after free flaw in l2cap_conn_del (CVE-2022-3640)

    * kernel: double free in usb_8dev_start_xmit (CVE-2022-28388)

    * kernel: vmwgfx: multiple vulnerabilities (CVE-2022-38457, CVE-2022-40133, CVE-2023-33951,     CVE-2023-33952)

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

    * kernel: Information leak in l2cap_parse_conf_req (CVE-2022-42895)

    * kernel: KVM: multiple vulnerabilities (CVE-2022-45869, CVE-2023-4155, CVE-2023-30456)

    * kernel: memory leak in ttusb_dec_exit_dvb (CVE-2022-45887)

    * kernel: speculative pointer dereference in do_prlimit (CVE-2023-0458)

    * kernel: use-after-free due to race condition in qdisc_graft (CVE-2023-0590)

    * 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: use-after-free in drivers/media/rc/ene_ir.c (CVE-2023-1118)

    * 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: denial of service in tipc_conn_close (CVE-2023-1382)

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

    * kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998)

    * kernel: ext4: use-after-free in ext4_xattr_set_entry (CVE-2023-2513)

    * 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: smsusb: use-after-free caused by do_submit_urb (CVE-2023-4132)

    * kernel: Race between task migrating pages and another task calling exit_mmap (CVE-2023-4732)

    * Kernel: denial of service in atm_tc_enqueue due to type confusion (CVE-2023-23455)

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

    * kernel: Denial of service issue in az6027 driver (CVE-2023-28328)

    * kernel: lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow (CVE-2023-28772)

    * kernel: blocking operation in dvb_frontend_get_event and wait_event_interruptible (CVE-2023-31084)

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

    * kernel: saa7134: race condition leading to use-after-free in saa7134_finidev (CVE-2023-35823)

    * kernel: dm1105: race condition leading to use-after-free in dm1105_remove.c (CVE-2023-35824)

    * 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: 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)

    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 8.9 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 Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2458 advisory.

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

    Security Fix(es):

    * use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)

    * net/ulp: use-after-free in listening ULP sockets (CVE-2023-0461)

    * cpu: AMD CPUs may transiently execute beyond unconditional direct branch (CVE-2021-26341)

    * malicious data for FBIOPUT_VSCREENINFO ioctl may cause OOB write memory (CVE-2021-33655)

    * possible race condition in drivers/tty/tty_buffers.c (CVE-2022-1462)

    * KVM: NULL pointer dereference in kvm_mmu_invpcid_gva (CVE-2022-1789)

    * use-after-free in free_pipe_info() could lead to privilege escalation (CVE-2022-1882)

    * KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks (CVE-2022-2196)

    * netfilter: nf_conntrack_irc message handling issue (CVE-2022-2663)

    * race condition in xfrm_probe_algs can lead to OOB read/write (CVE-2022-3028)

    * out-of-bounds read in fib_nh_match of the file net/ipv4/fib_semantics.c (CVE-2022-3435)

    * race condition in hugetlb_no_page() in mm/hugetlb.c (CVE-2022-3522)

    * memory leak in ipv6_renew_options() (CVE-2022-3524)

    * data races around icsk->icsk_af_ops in do_ipv6_setsockopt (CVE-2022-3566)

    * data races around sk->sk_prot (CVE-2022-3567)

    * memory leak in l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c (CVE-2022-3619)

    * denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry (CVE-2022-3623)

    * use-after-free after failed devlink reload in devlink_param_get (CVE-2022-3625)

    * USB-accessible buffer overflow in brcmfmac (CVE-2022-3628)

    * use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c (CVE-2022-3640)

    * Double-free in split_2MB_gtt_entry when function intel_gvt_dma_map_guest_page failed (CVE-2022-3707)

    * mptcp: NULL pointer dereference in subflow traversal at disconnect time (CVE-2022-4128)

    * l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference (CVE-2022-4129)

    * igmp: use-after-free in ip_check_mc_rcu when opening and closing inet sockets (CVE-2022-20141)

    * lockdown bypass using IMA (CVE-2022-21505)

    * double free in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c (CVE-2022-28388)

    * network backend may cause Linux netfront to use freed SKBs (XSA-405) (CVE-2022-33743)

    * unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry (CVE-2022-39188)

    * TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning     (CVE-2022-39189)

    * u8 overflow problem in cfg80211_update_notlisted_nontrans() (CVE-2022-41674)

    * use-after-free related to leaf anon_vma double reuse (CVE-2022-42703)

    * use-after-free in bss_ref_get in net/wireless/scan.c (CVE-2022-42720)

    * BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.c (CVE-2022-42721)

    * Denial of service in beacon protection for P2P-device (CVE-2022-42722)

    * memory corruption in usbmon driver (CVE-2022-43750)

    * NULL pointer dereference in traffic control subsystem (CVE-2022-47929)

    * NULL pointer dereference in rawv6_push_pending_frames (CVE-2023-0394)

    * use-after-free due to race condition in qdisc_graft() (CVE-2023-0590)

    * use-after-free caused by invalid pointer hostname in fs/cifs/connect.c (CVE-2023-1195)

    * denial of service in tipc_conn_close (CVE-2023-1382)

    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 9.2 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.

ID	Name	Product	Family	Severity
225261	Linux Distros Unpatched Vulnerability : CVE-2022-49401	Nessus	Misc.	high
185679	RHEL 8 : kernel (RHSA-2023:7077)	Nessus	Red Hat Local Security Checks	high
175477	RHEL 9 : kernel (RHSA-2023:2458)	Nessus	Red Hat Local Security Checks	high

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