Red Hat update for quagga

1) Double free memory error

EUVDB-ID: #VU10612

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-5379

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the Quagga BGP daemon due to double-free memory when processing certain forms of UPDATE message, containing cluster-list and/or unknown attributes. A remote attacker can supply specially crafted input, trigger bqpd to crash and execute arbitrary code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for x86_64: 7.0

CPE2.3

• cpe:2.3:o:red_hat:red_hat_enterprise_linux:7.0:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2018:0377

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.