A vulnerability classified as critical was found in GNOME glib up to 2.62.4. Affected by this vulnerability is an unknown code of the component GSocketClient. The manipulation of the argument proxy_addr with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. The greatest security relevance is in use cases where a proxy is used to help with privacy/anonymity, even though there is no technical barrier to a direct connection. NOTE: versions before 2.60 are unaffected.

The weakness was disclosed 01/09/2020. This vulnerability is known as CVE-2020-6750 since 01/09/2020. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Vendor

• GNOME

Name

• glib

Version

• 2.62.0
• 2.62.1
• 2.62.2
• 2.62.3
• 2.62.4

License

• open-source

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CPE 2.2info

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