Red Hat Enterprise Linux 9 update for kernel-rt



Published: 2022-11-15
Risk Medium
Patch available YES
Number of vulnerabilities 31
CVE-ID CVE-2022-21123
CVE-2022-39190
CVE-2022-36946
CVE-2022-29901
CVE-2022-29900
CVE-2022-29581
CVE-2022-28893
CVE-2022-28390
CVE-2022-26373
CVE-2022-24448
CVE-2022-23825
CVE-2022-23816
CVE-2022-21499
CVE-2022-21166
CVE-2022-21125
CVE-2022-20368
CVE-2020-36516
CVE-2022-2639
CVE-2022-2586
CVE-2022-1998
CVE-2022-1852
CVE-2022-1679
CVE-2022-1353
CVE-2022-1280
CVE-2022-1184
CVE-2022-1048
CVE-2022-1016
CVE-2022-0854
CVE-2022-0617
CVE-2022-0168
CVE-2021-3640
CWE-ID CWE-200
CWE-125
CWE-20
CWE-1037
CWE-911
CWE-416
CWE-415
CWE-264
CWE-909
CWE-843
CWE-284
CWE-327
CWE-191
CWE-476
CWE-401
Exploitation vector Network
Public exploit Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #18 is available.
Public exploit code for vulnerability #19 is available.
Vulnerable software
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Red Hat Enterprise Linux for Real Time
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Real Time for NFV
Operating systems & Components / Operating system

kernel-rt (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 31 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU64364

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21123

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Out-of-bounds read

EUVDB-ID: #VU67508

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-39190

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to an out-of-bounds read error within the net/netfilter/nf_tables_api.c in the Linux kernel. A local user can bind to an already bound chain and crash the kernel.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Input validation error

EUVDB-ID: #VU66476

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-36946

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the nfqnl_mangle() function in net/netfilter/nfnetlink_queue.c in the Linux kernel when processing IPv6 packets. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65220

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-29901

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to the way non-transparent sharing of branch predictor targets between contexts. A local user can exploit the vulnerability to gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

5) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65205

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-29900

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a mistrained branch predictions for return instructions. A local user can execute arbitrary speculative code under certain microarchitecture-dependent conditions. The vulnerability was dubbed  RETbleed.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

6) Improper update of reference count

EUVDB-ID: #VU63496

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-29581

CWE-ID: CWE-911 - Improper Update of Reference Count

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper update of reference count in net/sched in Linux kernel. A local user can execute arbitrary code with root privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

7) Use-after-free

EUVDB-ID: #VU62074

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-28893

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the SUNRPC subsystem in the Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

8) Double Free

EUVDB-ID: #VU63164

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-28390

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to boundary error in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c. A local user can pass specially crafted data to the application, trigger double free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

9) Security restrictions bypass

EUVDB-ID: #VU66549

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-26373

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to non-transparent sharing of return predictor targets between contexts in Intel CPU processors. A local user can bypass the expected architecture isolation between contexts and gain access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

10) Missing initialization of resource

EUVDB-ID: #VU61211

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-24448

CWE-ID: CWE-909 - Missing initialization of resource

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to missing initialization of resource within the fs/nfs/dir.c in the Linux kernel. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

11) Type Confusion

EUVDB-ID: #VU65204

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-23825

CWE-ID: CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a branch type confusion. A local user can force the branch predictor to predict the wrong branch type and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

12) Type Confusion

EUVDB-ID: #VU65219

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-23816

CWE-ID: CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a branch type confusion. A local user can force the branch predictor to predict the wrong branch type and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

13) Improper access control

EUVDB-ID: #VU63961

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21499

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to improper access restrictions to the kernel debugger when booted in secure boot environments. A local privileged user can bypass UEFI Secure Boot restrictions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

14) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21166

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

15) Information disclosure

EUVDB-ID: #VU64365

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-21125

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.



Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

16) Out-of-bounds read

EUVDB-ID: #VU67473

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-20368

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary condition within the packet_recvmsg() function in Linux kernel. A local user can trigger an out-of-bounds read error and potentially escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

17) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU66811

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-36516

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) or MitM attacks.

The vulnerability exists due to an error in the mixed IPID assignment method with the hash-based IPID assignment policy in Linux kernel. A remote attacker can inject data into a victim's TCP session or terminate that session.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

18) Integer underflow

EUVDB-ID: #VU66812

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-2639

CWE-ID: CWE-191 - Integer underflow

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to integer underflow within the reserve_sfa_size() function in the openvswitch kernel module in Linux kernel. A local user can trigger an out-of-bounds read error and crash the system or escalate privileges.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

19) Use-after-free

EUVDB-ID: #VU66396

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-2586

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the netfilter subsystem implementation in Linux kernel when preventing one nft object from referencing an nft set in another nft table. A local user can trigger a use-after-free error and execute arbitrary code on the system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

20) Use-after-free

EUVDB-ID: #VU69338

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1998

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the copy_event_to_user() function in Linux kernel. A local user can trigger a use-after-free error and escalate privileges on the system.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

21) NULL pointer dereference

EUVDB-ID: #VU64262

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1852

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel’s KVM module. A local user can perform a denial of service (DoS) attack in the x86_emulate_insn in arch/x86/kvm/emulate.c.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

22) Use-after-free

EUVDB-ID: #VU64861

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1679

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the ath9k_htc_wait_for_target() function in the Linux kernel’s Atheros wireless adapter driver. A local user can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

23) Information disclosure

EUVDB-ID: #VU63388

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1353

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in the pfkey_register function in net/key/af_key.c in the Linux kernel. A local user can gain unauthorized access to kernel memory, leading to a system crash or a leak of internal kernel information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

24) Use-after-free

EUVDB-ID: #VU62358

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1280

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a use-after-free error within the drm_lease_held() function in drivers/gpu/drm/drm_lease.c in the Linux kernel. A local user can run a specially crafted program to trigger a use-after-free error and crash the kernel or gain access to sensitive information.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

25) Use-after-free

EUVDB-ID: #VU64438

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1184

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a use-after-free error in fs/ext4/namei.c:dx_insert_block() function in the Linux kernel’s filesystem sub-component.. A local user can trigger use-after-free and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

26) Use-after-free

EUVDB-ID: #VU63428

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1048

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to a use-after-free error in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. A local user can execute arbitrary code with elevated privileges and perform a denial-of-service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

27) Use-after-free

EUVDB-ID: #VU62028

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-1016

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a use-after-free error in net/netfilter/nf_tables_core.c:nft_do_chain in Linux kernel.. A local user can trigger a use-after-free error and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

28) Memory leak

EUVDB-ID: #VU63427

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-0854

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due memory leak in the Linux kernel’s DMA subsystem when processing DMA_FROM_DEVICE calls. A local user can trigger a memory leak error and read random memory from the kernel space.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

29) NULL pointer dereference

EUVDB-ID: #VU61210

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-0617

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel UDF file system functionality. A local user can supply a malicious UDF image to the udf_file_write_iter() function and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

30) NULL pointer dereference

EUVDB-ID: #VU63789

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-0168

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS). A privileged (CAP_SYS_ADMIN) attacker can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

31) Use-after-free

EUVDB-ID: #VU63769

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-3640

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in sco_sock_sendmsg() function of the Linux kernel HCI subsystem. A privileged local user can call ioct UFFDIO_REGISTER or other way trigger race condition to escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time: 9

Red Hat Enterprise Linux for Real Time for NFV: 9

kernel-rt (Red Hat package): before 5.14.0-162.6.1.rt21.168.el9_1


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:7933

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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