Ubuntu update for pyxdg



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-12761
CWE-ID CWE-91
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

python3-xdg (Ubuntu package)
Operating systems & Components / Operating system package or component

python-xdg (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) XML injection

EUVDB-ID: #VU51178

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2019-12761

CWE-ID: CWE-91 - XML Injection

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation when processing XML data in xdg/Menu.py before an eval call. A remote unauthenticated attacker can pass specially crafted XML data to the application and perform arbitrary actions on the system.

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

Mitigation

Update the affected package pyxdg to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

python3-xdg (Ubuntu package): before 0.25-4ubuntu0.16.04.1

python-xdg (Ubuntu package): before 0.25-4ubuntu0.16.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-4700-1


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. However, proof of concept for this vulnerability is available.



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