The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5982-1 advisory.

  - A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks.
    L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after     running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can     execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past     commit 2e7eab81425a (CVE-2022-2196)

  - A use-after-free flaw was found in the Linux kernel's SGI GRU driver in the way the first     gru_file_unlocked_ioctl function is called by the user, where a fail pass occurs in the     gru_check_chiplet_assignment function. This flaw allows a local user to crash or potentially escalate     their privileges on the system. (CVE-2022-3424)

  - An out-of-bounds(OOB) memory access vulnerability was found in vmwgfx driver in     drivers/gpu/vmxgfx/vmxgfx_kms.c in GPU component in the Linux kernel with device file '/dev/dri/renderD128     (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing     a denial of service(DoS). (CVE-2022-36280)

  - In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused     by refcount races, affecting dvb_demux_open and dvb_dmxdev_release. (CVE-2022-41218)

  - A use-after-free flaw caused by a race among the superblock operations in the gadgetfs Linux driver was     found. It could be triggered by yanking out a device that is running the gadgetfs side. (CVE-2022-4382)

  - In the Linux kernel before 6.1.3, fs/ntfs3/record.c does not validate resident attribute names. An out-of-     bounds write may occur. (CVE-2022-48423)

  - In the Linux kernel before 6.1.3, fs/ntfs3/inode.c does not validate the attribute name offset. An     unhandled page fault may occur. (CVE-2022-48424)

  - The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The     ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL     MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the     TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to     the prctl syscall. The patch that added the support for the conditional mitigation via prctl     (ib_prctl_set) dates back to the kernel 4.9.176. We recommend upgrading past commit     a664ec9158eeddd75121d39c9a0758016097fa96 (CVE-2023-0045)

  - A bug affects the Linux kernel's ksmbd NTLMv2 authentication and is known to crash the OS immediately in     Linux-based systems. (CVE-2023-0210)

  - A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.
    SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result     in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit     56b88b50565cd8b946a2d00b0c83927b7ebb055e (CVE-2023-0266)

  - cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes     indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

  - atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial     of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition     rather than valid classification results). (CVE-2023-23455)

  - In rndis_query_oid in drivers/net/wireless/rndis_wlan.c in the Linux kernel through 6.1.5, there is an     integer overflow in an addition. (CVE-2023-23559)

  - In the Linux kernel 6.0.8, there is a use-after-free in ntfs_trim_fs in fs/ntfs3/bitmap.c.
    (CVE-2023-26606)

  - A NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in     the Linux Kernel. The message from user space is not checked properly before transferring into the device.
    This flaw allows a local user to crash the system or potentially cause a denial of service.
    (CVE-2023-28328)

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

Detections

Analytics

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5982-1)

high Nessus Plugin ID 173621

Version 1.4

Version 1.3

Version 1.3

Version 1.2

Version 1.1

Version 1.0

Version 1.4 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401100845
Version 1.3 Jan 9, 2024, 6:56 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401091856
Version 1.3 Oct 21, 2023, 5:06 AM Plugin metadata Detection Plugin Feed: 202310210506
Version 1.2 May 8, 2023, 2:07 PM CVSSv2 score source (changed from "CVE-2023-26606" to "CVE-2023-0045") CVSS metrics ("CVSSv2 score" changed from 6.8 to 7.8. "CVSSv2 score" changed from 6.8 to 7.8. "CVSSv2 score" changed from 6.8 to 7.8. "CVSSv2 vector" changed from "CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C" to "CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N". "CVSSv2 vector" changed from "CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C" to "CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N") CVSSv2 severity (based on CVE-2023-0045, severity increased from "Medium" to "High") Plugin Feed: 202305081407
Version 1.1 Mar 30, 2023, 10:08 PM CISA reference CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C". "CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C". "CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C". "CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C") Exploit attributes ("Exploit available" set to "True". "Exploit available" set to "True". "Exploit available" set to "True". "Exploitability ease" changed from "No known exploits are available" to "Exploits are available". "Exploitability ease" changed from "No known exploits are available" to "Exploits are available". "Exploitability ease" changed from "No known exploits are available" to "Exploits are available". "Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202303302208
Version 1.0 Mar 29, 2023, 6:10 AM New Plugin Feed: 202303290610