#VU44118 Input validation error in Nextcloud iOS App - CVE-2011-4016

Vulnerability identifier: #VU44118

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-4016

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nextcloud iOS App
Other software / Other software solutions

Vendor: Nextcloud

Description

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

The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Nextcloud iOS App: 12.2 - 15.2

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External links
https://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
https://www.securitytracker.com/id?1027005

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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.