Ubuntu update for Wget

Published: 2019-04-08 | Updated: 2019-04-11

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-20483 CVE-2019-5953
CWE-ID	CWE-200 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	wget (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU16783

Risk: Low

CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20483

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to set_file_metadata in xattr.c stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file. A local attacker can read this attribute, as demonstrated by getfattr and obtain credentials contained in the URL.

Mitigation

Update the affected packages.

Ubuntu 18.10: wget - 1.19.5-1ubuntu1.1
Ubuntu 18.04 LTS: wget - 1.19.4-1ubuntu2.2
Ubuntu 16.04 LTS: wget - 1.17.1-1ubuntu1.5
Ubuntu 14.04 LTS: wget - 1.15-1ubuntu1.14.04.5

Vulnerable software versions

wget (Ubuntu package): 1.15-1ubuntu1.14.04.1 - 1.19.4-1ubuntu2.1

CPE2.3

External links

http://usn.ubuntu.com/3943-1/

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.

2) Buffer overflow

EUVDB-ID: #VU18143

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5953

CWE-ID: CWE-119 - Memory corruption