Ubuntu update for quagga



Published: 2023-11-15
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-37032
CVE-2023-46753
CWE-ID CWE-125
CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

quagga-bgpd (Ubuntu package)
Operating systems & Components / Operating system package or component

quagga (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU67277

Risk: Medium

CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-37032

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

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary condition when processing BGP messages. A remote attacker can send specially crafted BGP messages to the system, trigger an out-of-bounds read error and read contents of memory on the system or crash the BGP daemon.

Mitigation

Update the affected package quagga to the latest version.

Vulnerable software versions

Ubuntu: 20.04

quagga-bgpd (Ubuntu package): before 1.2.4-4ubuntu0.4

quagga (Ubuntu package): before 1.2.4-4ubuntu0.4

External links

http://ubuntu.com/security/notices/USN-6482-1


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. However, proof of concept for this vulnerability is available.

2) Input validation error

EUVDB-ID: #VU82902

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-46753

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when processing BGP UPDATE message without mandatory attributes. A remote attacker can send specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package quagga to the latest version.

Vulnerable software versions

Ubuntu: 20.04

quagga-bgpd (Ubuntu package): before 1.2.4-4ubuntu0.4

quagga (Ubuntu package): before 1.2.4-4ubuntu0.4

External links

http://ubuntu.com/security/notices/USN-6482-1


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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