Buffer overflow in F5 BIG-IP BaseOS component

1) Buffer overflow

EUVDB-ID: #VU21942

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-18197

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the xsltCopyText() function in transform.c in libxslt. A remote attacker can create a specially crafted XML document, pass it to the affected application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

BIG-IP: 13.1.0 - 16.1.3.1

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:13.1.5:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.5.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:15.1.6.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:16.1.3.1:*:*:*:*:*:*:*

External links

http://support.f5.com/csp/article/K10812540

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.