Arch Linux update for linux-hardened



Risk High
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2022-41674
CVE-2022-42719
CVE-2022-42720
CVE-2022-42721
CVE-2022-42722
CWE-ID CWE-119
CWE-416
CWE-476
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Arch Linux
Operating systems & Components / Operating system

linux-hardened
Operating systems & Components / Operating system package or component

Vendor Arch Linux

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU68311

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-41674

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing WLAN frames within the ieee80211_bss_info_update() function in net/mac80211/scan.c in Linux kernel. A remote attacker on the local network can send specially crafted WLAN frames to the affected system, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package linux-hardened to version 5.19.15.hardened2-1.

Vulnerable software versions

Arch Linux: All versions

linux-hardened: before 5.19.15.hardened2-1

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202210-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU68313

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-42719

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the mac80211 stack in Linux kernel when parsing a multi-BSSID element. A remote attacker on the local network can send specially crafted WLAN frames to the affected system, trigger a use-after-free error and execute arbitrary code.

Mitigation

Update the affected package linux-hardened to version 5.19.15.hardened2-1.

Vulnerable software versions

Arch Linux: All versions

linux-hardened: before 5.19.15.hardened2-1

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202210-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use-after-free

EUVDB-ID: #VU68314

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-42720

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the mac80211 stack in Linux kernel when parsing a multi-BSS element. A remote attacker on the local network can send specially crafted WLAN frames to the affected system, trigger a use-after-free error and execute arbitrary code.

Mitigation

Update the affected package linux-hardened to version 5.19.15.hardened2-1.

Vulnerable software versions

Arch Linux: All versions

linux-hardened: before 5.19.15.hardened2-1

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202210-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Buffer overflow

EUVDB-ID: #VU68316

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-42721

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a list management error in the mac80211 stack in the Linux kernel when handling BSS. A remote attacker on the local network can send specially crafted WLAN frames to the system, trigger linked list corruption and execute arbitrary code.

Mitigation

Update the affected package linux-hardened to version 5.19.15.hardened2-1.

Vulnerable software versions

Arch Linux: All versions

linux-hardened: before 5.19.15.hardened2-1

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202210-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) NULL pointer dereference

EUVDB-ID: #VU68317

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-42722

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the mac80211 stack in Linux kernel. A remote attacker on the local network can send specially crafted WLAN frames to the affected system and perform a denial of service (DoS) attack against the beacon protection of P2P devices.

Mitigation

Update the affected package linux-hardened to version 5.19.15.hardened2-1.

Vulnerable software versions

Arch Linux: All versions

linux-hardened: before 5.19.15.hardened2-1

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-202210-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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