GNOME gnome-desktop up to 3.26.x/3.28.x/3.30.2.1/3.32.1.0 Sandbox input validation

Summaryinfo

A vulnerability described as critical has been identified in GNOME gnome-desktop up to 3.26.x/3.28.x/3.30.2.1/3.32.1.0. The affected element is an unknown function of the component Sandbox. Such manipulation leads to input validation. This vulnerability is traded as CVE-2019-11460. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GNOME gnome-desktop up to 3.26.x/3.28.x/3.30.2.1/3.32.1.0. It has been rated as critical. Affected by this issue is an unknown code block of the component Sandbox. 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 confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in GNOME gnome-desktop 3.26, 3.28, and 3.30 prior to 3.30.2.2, and 3.32 prior to 3.32.1.1. A compromised thumbnailer may escape the bubblewrap sandbox used to confine thumbnailers by using the TIOCSTI ioctl to push characters into the input buffer of the thumbnailer's controlling terminal, allowing an attacker to escape the sandbox if the thumbnailer has a controlling terminal. This is due to improper filtering of the TIOCSTI ioctl on 64-bit systems, similar to CVE-2019-10063.

The bug was discovered 04/13/2019. The weakness was shared 04/22/2019 (Website). The advisory is shared for download at lists.fedoraproject.org. This vulnerability is handled as CVE-2019-11460 since 04/22/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 9 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197473 (Ubuntu Security Notification for Gnome-desktop3 Vulnerability (USN-3994-1)).

Upgrading to version 3.30.2.2 or 3.32.1.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• GNOME

Name

• gnome-desktop

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14
• 3.15
• 3.16
• 3.17
• 3.18
• 3.19
• 3.20
• 3.21
• 3.22
• 3.23
• 3.24
• 3.25
• 3.26
• 3.27
• 3.28
• 3.30.2.0
• 3.30.2.1
• 3.32.0
• 3.32.1.0

License

• open-source

Website

• Vendor: https://www.gnome.org/

CPE 2.3info

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CPE 2.2info

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