Cloud Foundry Foundation cflinuxfs3 update for DBus



Published: 2022-10-27
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-42010
CVE-2022-42011
CVE-2022-42012
CWE-ID CWE-617
CWE-125
CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		cflinuxfs3
Other software / Other software solutions

Vendor Cloud Foundry Foundation

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Reachable Assertion

EUVDB-ID: #VU67969

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42010

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

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

The vulnerability exists due to a reachable assertion in debug builds caused by a syntactically invalid type signature with incorrectly nested parentheses and curly brackets. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

cflinuxfs3: before 0.331.0

External links

http://github.com/cloudfoundry/cflinuxfs3/releases/tag/0.331.0


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) Out-of-bounds read

EUVDB-ID: #VU67970

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42011

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

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error caused by an invalid array of fixed-length elements where the length of the array is not a multiple of the length of the element. A local user can trigger an out-of-bounds read and gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

cflinuxfs3: before 0.331.0

External links

http://github.com/cloudfoundry/cflinuxfs3/releases/tag/0.331.0


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.

3) Use-after-free

EUVDB-ID: #VU67971

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42012

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 caused by a message in non-native endianness with out-of-band Unix file descriptors. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

cflinuxfs3: before 0.331.0

External links

http://github.com/cloudfoundry/cflinuxfs3/releases/tag/0.331.0


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.



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