Information disclosure in sSMTP

1) Out-of-bounds read

EUVDB-ID: #VU29268

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2008-3962

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the from_format() function in ssmtp.c in sSMTP. A remote attacker can send an email with specially crafted From: field and read memory contents on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

sSMTP: 2.61 - 2.62

CPE2.3

• cpe:2.3:a:ajwans:ssmtp:2.62:*:*:*:*:*:*:*
• cpe:2.3:a:ajwans:ssmtp:2.61:*:*:*:*:*:*:*

External links

http://www.openwall.com/lists/oss-security/2008/09/09/5
http://www.openwall.com/lists/oss-security/2008/09/09/6
http://www.openwall.com/lists/oss-security/2008/09/11/2
http://www.securityfocus.com/bid/31094
http://www.vupen.com/english/advisories/2008/2597
http://bugs.gentoo.org/234391
http://exchange.xforce.ibmcloud.com/vulnerabilities/45038

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.