#VU32907 Information disclosure in libetpan - CVE-2020-15953

Vulnerability identifier: #VU32907

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15953

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libetpan
Other software / Other software solutions

Vendor: www.etpan.org

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libetpan: 1.0 - 1.9.4

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External links
https://github.com/dinhvh/libetpan/issues/386
https://security.gentoo.org/glsa/202007-55

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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.