Fedora 36 update for kernel-6.1.5-100.fc36 kernel-headers-6.1.5-100.fc36 kernel-tools



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-2196
CVE-2022-4379
CWE-ID CWE-665
CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

kernel-6.1.5-100.fc36 kernel-headers-6.1.5-100.fc36 kernel-tools
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Initialization

EUVDB-ID: #VU74019

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-2196

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

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

The vulnerability exists due to improper initialization within nVMX in Linux kernel. A local user can perform speculative execution attacks and escalate privileges on the system.

Mitigation

Upgrade kernel-6.1.5-100.fc36 kernel-headers-6.1.5-100.fc36 kernel-tools to version 6.1.5-100.fc36.

Vulnerable software versions

Fedora: 36

kernel-6.1.5-100.fc36 kernel-headers-6.1.5-100.fc36 kernel-tools: before 6.1.5-100.fc36

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-3fd7349f60


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Use-after-free

EUVDB-ID: #VU71583

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/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-2022-4379

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the __nfs42_ssc_open() function in fs/nfs/nfs4file.c. A remote attacker can perform a denial of service (DoS) attack.


Mitigation

Upgrade kernel-6.1.5-100.fc36 kernel-headers-6.1.5-100.fc36 kernel-tools to version 6.1.5-100.fc36.

Vulnerable software versions

Fedora: 36

kernel-6.1.5-100.fc36 kernel-headers-6.1.5-100.fc36 kernel-tools: before 6.1.5-100.fc36

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-3fd7349f60


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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