Ubuntu update for xerces-c

1) Use-after-free

EUVDB-ID: #VU24140

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-2018-1311

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when scanning an external DTS file. A remote attacker can supply a specially crafted DTS file, trigger a use-after-free error and execute arbitrary code on the target system.

Mitigation

Update the affected package xerces-c to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

libxerces-c3.1 (Ubuntu package): before Ubuntu Pro

libxerces-c3.2 (Ubuntu package): before Ubuntu Pro

libxerces-c-samples (Ubuntu package): before Ubuntu Pro

CPE2.3

• cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:libxerces-c3.1_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:libxerces-c3.2_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:libxerces-c-samples_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-6579-1

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.