Fedora 33 update for freerdp, gnome-boxes, gnome-remote-desktop, guacamole-server, hydra, medusa, pidgin-sipe, remmina, vinagre, weston



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-41160
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
Fedora
Operating systems & Components / Operating system

weston
Operating systems & Components / Operating system package or component

vinagre
Operating systems & Components / Operating system package or component

remmina
Operating systems & Components / Operating system package or component

pidgin-sipe
Operating systems & Components / Operating system package or component

medusa
Operating systems & Components / Operating system package or component

hydra
Operating systems & Components / Operating system package or component

guacamole-server
Operating systems & Components / Operating system package or component

gnome-remote-desktop
Operating systems & Components / Operating system package or component

gnome-boxes
Operating systems & Components / Operating system package or component

freerdp
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU57584

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-2021-41160

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing connections with GDI or SurfaceCommands. A remote server can send specially crafted data to the client, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 33

weston: before 8.0.0-7.fc33

vinagre: before 3.22.0-21.fc33

remmina: before 1.4.21-1.fc33

pidgin-sipe: before 1.25.0-7.fc33

medusa: before 2.2-14.20181216git292193b.fc33

hydra: before 9.2-3.fc33

guacamole-server: before 1.3.0-9.fc33

gnome-remote-desktop: before 0.1.9-3.fc33

gnome-boxes: before 3.38.2-3.fc33

freerdp: before 2.4.1-1.fc33

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2021-ac23d9e47f


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.



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