ArubaOS-CX < 10.3.0001 (ARUBA-PSA-2020-010)

high Nessus Plugin ID 150074

Synopsis

An application installed on the remote host is affected by multiple vulnerabilities.

Description

The version of ArubaOS-CX installed on the remote host is prior to version 10.3.0001. It is, therefore, affected by multiple vulnerabilities, as follows:

- Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. (CVE-2019-11477)

- Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. (CVE-2019-11478)

- Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. (CVE-2019-11479)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to ArubaOS-CX version 10.3.0001 or later.

See Also

https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt

Plugin Details

Severity: High

ID: 150074

File Name: arubaos-cx_aruba-psa-2020-010.nasl

Version: 1.5

Type: combined

Family: Misc.

Published: 5/31/2021

Updated: 12/28/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2019-11477

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2019-11479

Vulnerability Information

CPE: cpe:/o:arubanetworks:arubaos, cpe:/o:hp:arubaos, x-cpe:/o:arubanetworks:arubaos-cx

Required KB Items: installed_sw/ArubaOS

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2020

Vulnerability Publication Date: 9/15/2020

Reference Information

CVE: CVE-2019-11477, CVE-2019-11478, CVE-2019-11479