Information disclosure in GNOME GLib



Published: 2020-01-16 | Updated: 2020-02-24
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-6750
CWE-ID CWE-200
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Gnome GLib
Universal components / Libraries / Libraries used by multiple products

Vendor Gnome Development Team

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated: 24.02.2020

Changed bulletin status to patched, updated list of affected and fixed software, added vulnerability #2.

1) Information disclosure

EUVDB-ID: #VU24350

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-6750

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

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

The vulnerability exists due to an error within the GSocketClient in GNOME GLib when processing proxy_addr field. A remote attacker force the system to connect to a specific server using a real address instead of pre-configured proxy address and gain knowledge of the victim's real IP address.

Exploitation of the vulnerability is timing-dependent and may occur only sporadically depending on network delays.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Gnome GLib: 2.60.0 - 2.63.5


CPE2.3 External links

http://bugzilla.suse.com/show_bug.cgi?id=1160668
http://gitlab.gnome.org/GNOME/glib/issues/1989

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Resource management error

EUVDB-ID: #VU25564

Risk: Low

CVSSv3.1:

CVE-ID: N/A

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to relative read when calling the g_printerr() function, which could lead to a denial of service from a setuid-root process being used to block access to the TTY for another user. A local user can block access to TTY for another user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gnome GLib: 2.60.0 - 2.63.5


CPE2.3 External links

http://gitlab.gnome.org/GNOME/glib/-/releases#2.63.6

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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