GNOME Evolution up to 3.21.2 mailto?attach information disclosure

Summaryinfo

A vulnerability was found in GNOME Evolution. It has been declared as problematic. Affected is an unknown function. Such manipulation of the argument mailto?attach leads to information disclosure. This vulnerability is documented as CVE-2020-11879. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GNOME Evolution and classified as problematic. Affected by this issue is some unknown processing. The manipulation of the argument mailto?attach with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

An issue was discovered in GNOME Evolution before 3.35.91. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make Evolution attach local files or directories to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.

The weakness was released 04/17/2020. This vulnerability is handled as CVE-2020-11879 since 04/17/2020. The exploitation is known to be easy. 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 MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 234518 (Amazon Linux 2 : evolution (ALAS-2025-2833)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.35.91 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (234518). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• GNOME

Name

• Evolution

Version

• 1.0.8
• 1.2
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.4
• 1.4.3
• 1.4.4
• 1.4.5
• 1.4.6
• 1.5
• 1.11
• 2.0
• 2.0.0
• 2.0.1
• 2.0.2
• 2.1
• 2.2
• 2.2.1
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.6.1
• 2.3.7
• 2.4.2.1
• 2.6
• 2.8.1
• 2.10.3
• 2.12
• 2.12.3
• 2.22.1
• 2.22.3
• 2.24
• 2.24.5
• 2.25.92
• 2.26.1
• 2.26.3
• 2.28.3.1
• 2.30.3
• 2.32.3
• 3.0.3
• 3.21.2

License

• open-source

Website

• Vendor: https://www.gnome.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Exploitinginfo

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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