Ubuntu update for psutil

1) Double Free

EUVDB-ID: #VU22848

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18874

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists because of refcount mishandling within a "while" or "for" loop that converts system data into a Python object. A remote attacker can trigger double free error and execute arbitrary code on the target system.

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

Mitigation

Update the affected packages.

Ubuntu 19.10

python-psutil - 5.5.1-1ubuntu0.19.10.1

python3-psutil - 5.5.1-1ubuntu0.19.10.1

Ubuntu 19.04

python-psutil - 5.5.1-1ubuntu0.19.04.1

python3-psutil - 5.5.1-1ubuntu0.19.04.1

Ubuntu 18.04 LTS

python-psutil - 5.4.2-1ubuntu0.1

python3-psutil - 5.4.2-1ubuntu0.1

Ubuntu 16.04 LTS

python-psutil - 3.4.2-1ubuntu0.1

python3-psutil - 3.4.2-1ubuntu0.1

Vulnerable software versions

python-psutil (Ubuntu package): 3.4.1-1 - 5.5.1-1build1

External links

http://usn.ubuntu.com/4204-1/

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.