Fedora 28 update for freerdp, gnome-boxes, pidgin-sipe, remmina



| Updated: 2025-04-24
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-1000852
CVE-2018-8786
CWE-ID CWE-200
CWE-122
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software
 Fedora
Operating systems & Components / Operating system

remmina
Operating systems & Components / Operating system package or component

pidgin-sipe
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 information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU17250

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-1000852

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to an error in channels/drdynvc/client/drdynvc_main.c, drdynvc_process_capability_request. A remote attacker can connect the rdp server with echo option and gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

remmina: before 1.3.3-1.fc28

pidgin-sipe: before 1.24.0-3.fc28

gnome-boxes: before 3.28.5-2.fc28

freerdp: before 2.0.0-49.20190304git435872b.fc28

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b2d986c3e9


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.

2) Heap-based buffer overflow

EUVDB-ID: #VU16592

Risk: High

CVSSv4.0: 7.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2018-8786

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition or execute arbitrary code.

The vulnerability exists due to improper handling of bitmaps by the update_read_bitmap_update() function, as defined in the update.c source code file. A remote attacker can send a specially crafted request that submits malicious input, trigger a heap-based buffer overflow condition that the attacker can use to cause a DoS condition or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 28

remmina: before 1.3.3-1.fc28

pidgin-sipe: before 1.24.0-3.fc28

gnome-boxes: before 3.28.5-2.fc28

freerdp: before 2.0.0-49.20190304git435872b.fc28

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-b2d986c3e9


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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