PT-2021-7254 · Linux+5 · Linux Kernel+5

Lin Ma · Published 2021-11-17 · Updated 2023-08-14 · CVE-2021-4202

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free flaw was found in the nci request function in net/nfc/nci/core.c of the NFC Controller Interface (NCI) in the Linux kernel. This issue is related to the use of memory after it has been freed. The flaw could allow a local attacker with user privileges to cause a data race problem while a device is being removed, leading to a privilege escalation problem.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

ALT-PU-2022-1175

ALT-PU-2022-1647

ALT-PU-2022-2155

ALT-PU-2023-1684

ALT-PU-2023-1741

ALT-PU-2023-1814

ALT-PU-2023-4894

AZL-9237

BDU:2022-04266

CVE-2021-4202

DLA-2940-1

DLA-2941-1

DSA-5096-1

OESA-2022-1495

OPENSUSE-SU-2022:0169-1

OPENSUSE-SU-2022:0198-1

OPENSUSE-SU-2022:0366-1

OPENSUSE-SU-2022_0169-1

OPENSUSE-SU-2022_0198-1

OPENSUSE-SU-2022_0366-1

SUSE-SU-2022:0169-1

SUSE-SU-2022:0197-1

SUSE-SU-2022:0198-1

SUSE-SU-2022:0288-1

SUSE-SU-2022:0289-1

SUSE-SU-2022:0362-1

SUSE-SU-2022:0364-1

SUSE-SU-2022:0366-1

SUSE-SU-2022:0367-1

SUSE-SU-2022:0371-1

SUSE-SU-2022:0372-1

SUSE-SU-2022:0418-1

SUSE-SU-2022:0463-1

SUSE-SU-2022:0477-1

SUSE-SU-2022:0552-1

SUSE-SU-2022:0555-1

USN-5265-1

USN-5294-1

USN-5294-2

USN-5297-1

USN-5298-1

USN-5500-1

USN-5505-1

USN-5513-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 419

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2022_0995_watch_queue.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2023_0386_overlayfs_priv_esc.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2022_1043_io_uring_priv_esc.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/netfilter_nft_set_elem_init_privesc.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/vmwgfx_fd_priv_esc.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/docker_cgroup_escape.rb · Exploit
• 🔥 https://github.com/tr3ee/CVE-2022-23222 · Exploit
• 🔥 https://github.com/Bonfee/CVE-2022-0995 · Exploit
• 🔥 https://github.com/Bonfee/CVE-2022-25636 · Exploit
• 🔥 https://github.com/xkaneiki/CVE-2023-0386 · Exploit
• 🔥 https://github.com/Crusaders-of-Rust/CVE-2022-0185 · Exploit
• 🔥 https://github.com/randorisec/CVE-2022-34918-LPE-PoC · Exploit
• 🔥 https://github.com/veritas501/CVE-2022-34918 · Exploit
• 🔥 https://github.com/TurtleARM/CVE-2023-0179-PoC · Exploit
• 🔥 https://github.com/plummm/CVE-2022-27666 · Exploit