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

  - ext4: block range must be validated before use in ext4_mb_clear_bb() Block range to free is validated in     ext4_free_blocks() using ext4_inode_block_valid() and then it's passed to ext4_mb_clear_bb(). However in     some situations on bigalloc file system the range might be adjusted after the validation in     ext4_free_blocks() which can lead to troubles on corrupted file systems such as one found by syzkaller     that resulted in the following BUG kernel BUG at fs/ext4/ext4.h:3319! PREEMPT SMP NOPTI CPU: 28 PID: 4243     Comm: repro Kdump: loaded Not tainted 5.19.0-rc6+ #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),     BIOS 1.15.0-1.fc35 04/01/2014 RIP: 0010:ext4_free_blocks+0x95e/0xa90 Call Trace: <TASK> ?     lock_timer_base+0x61/0x80 ? __es_remove_extent+0x5a/0x760 ? __mod_timer+0x256/0x380 ?     ext4_ind_truncate_ensure_credits+0x90/0x220 ext4_clear_blocks+0x107/0x1b0 ext4_free_data+0x15b/0x170     ext4_ind_truncate+0x214/0x2c0 ? _raw_spin_unlock+0x15/0x30 ? ext4_discard_preallocations+0x15a/0x410 ?     ext4_journal_check_start+0xe/0x90 ? __ext4_journal_start_sb+0x2f/0x110 ext4_truncate+0x1b5/0x460 ?
    __ext4_journal_start_sb+0x2f/0x110 ext4_evict_inode+0x2b4/0x6f0 evict+0xd0/0x1d0     ext4_enable_quotas+0x11f/0x1f0 ext4_orphan_cleanup+0x3de/0x430 ? proc_create_seq_private+0x43/0x50     ext4_fill_super+0x295f/0x3ae0 ? snprintf+0x39/0x40 ? sget_fc+0x19c/0x330 ? ext4_reconfigure+0x850/0x850     get_tree_bdev+0x16d/0x260 vfs_get_tree+0x25/0xb0 path_mount+0x431/0xa70 __x64_sys_mount+0xe2/0x120     do_syscall_64+0x5b/0x80 ? do_user_addr_fault+0x1e2/0x670 ? exc_page_fault+0x70/0x170     entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fdf4e512ace Fix it by making sure that the block     range is properly validated before used every time it changes in ext4_free_blocks() or ext4_mb_clear_bb().
    (CVE-2022-50021)

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

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2022-50021

high Nessus Plugin ID 244444

Version 1.13

Version 1.12

Version 1.11

Version 1.10

Version 1.9

Version 1.7

Version 1.6

Version 1.4

Version 1.3

Version 1.2

Version 1.13 Jul 6, 2026, 4:58 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607060458
Version 1.12 Jul 2, 2026, 3:38 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202607021538
Version 1.11 Jun 30, 2026, 12:42 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606300042
Version 1.10 Jun 28, 2026, 7:50 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606280750
Version 1.9 Jun 17, 2026, 2:25 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202606171425
Version 1.7 May 15, 2026, 12:01 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605151201
Version 1.6 Nov 26, 2025, 1:15 PM CVSS metrics ("CVSSv3 score" set to 7.8) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H") CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:U/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:U/RC:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202511261315
Version 1.4 Sep 25, 2025, 11:29 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202509252329
Version 1.3 Sep 2, 2025, 6:30 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202509020630
Version 1.2 Aug 21, 2025, 6:43 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202508211843