#VU66988 Improper Certificate Validation in LibGRSS - management of RSS and Atom feeds - CVE-2016-20011

Vulnerability identifier: #VU66988

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-20011

CWE-ID: CWE-295

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibGRSS - management of RSS and Atom feeds
Other software / Other software solutions

Vendor: Gnome Development Team

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to missing certificate validation on the SoupSessionSync objects. A remote attacker can perform Man-in-the-Middle (MitM) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LibGRSS - management of RSS and Atom feeds: 0.3 - 0.7.0

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External links
https://bugzilla.gnome.org/show_bug.cgi?id=772647
https://gitlab.gnome.org/GNOME/libgrss/-/issues/4
https://gitlab.gnome.org/GNOME/libgrss/-/merge_requests/7.patch

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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.