#VU23860 Buffer overflow in USG9500


Published: 2020-01-02 | Updated: 2020-01-17

Vulnerability identifier: #VU23860

Vulnerability 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-2019-5273

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
USG9500
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Huawei

Description

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

The vulnerability exists due to a flaw in the X.509 implementation. A remote attacker can use a specially crafted certificate, trigger memory corruption and cause a denial of service condition on the target system.


Mitigation
Install updates from vendor's website.

Vulnerable software versions

USG9500: V500R001C30 - V500R001C60


External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-eudemon-en


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.


Latest bulletins with this vulnerability