GNOME glib 2.59.2 GTask gio/gsocketclient.c g_socket_client_connected_callback input validation

Summaryinfo

A vulnerability described as problematic has been identified in GNOME glib 2.59.2. Affected by this issue is the function g_socket_client_connected_callback of the file gio/gsocketclient.c of the component GTask Handler. Such manipulation leads to input validation. This vulnerability is listed as CVE-2019-9633. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GNOME glib 2.59.2. Affected by this issue is the function g_socket_client_connected_callback of the file gio/gsocketclient.c of the component GTask Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

gio/gsocketclient.c in GNOME GLib 2.59.2 does not ensure that a parent GTask remains alive during the execution of a connection-attempting enumeration, which allows remote attackers to cause a denial of service (g_socket_client_connected_callback mishandling and application crash) via a crafted web site, as demonstrated by GNOME Web (aka Epiphany).

The bug was discovered 01/14/2019. The weakness was presented 03/08/2019 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2019-9633 since 03/08/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 53 days. During that time the estimated underground price was around $0-$5k.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• GNOME

Name

• glib

Version

• 2.59.2

License

• open-source

Website

• Vendor: https://www.gnome.org/

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CPE 2.2info

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