Input validation error in libxml2 (Alpine package)

Published: 2017-06-16

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2017-5969
CWE-ID	CWE-20
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	libxml2 (Alpine package) Operating systems & Components / Operating system package or component
Vendor	Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU32077

Risk: Medium

CVSSv3.1: 4.1 [AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5969

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference) via a crafted XML document.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libxml2 (Alpine package): 2.9.4-r2 - 2.9.4-r3

External links

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.