Vulnerability identifier: #VU9732

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7847

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Thunderbird
Client/Desktop applications / Messaging software

Vendor: Mozilla

Description
The disclosed vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to leak of local path string from specially crafted CSS and RSS feed. A remote attacker can reveal local path strings, which may contain user name.

Mitigation
Update to version 52.5.2.

Vulnerable software versions

Mozilla Thunderbird: 52.0 - 52.5

---

External links
http://www.mozilla.org/en-US/security/advisories/mfsa2017-30/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.