CVE-2013-4584

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-15 · updated 2026-06-16
Weakness: CWE-755

Description

Perdition before 2.2 may have weak security when handling outbound connections, caused by an error in the STARTTLS IMAP and POP server. ssl_outgoing_ciphers not being applied to STARTTLS connections

Affected products

Debian Linux: 8.0, 9.0, 10.0
Horms Perdition: before 2.1 — fixed in 2.1

How to fix

Upgrade to a fixed version: Horms Perdition 2.1. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2013/11/15/6
http://www.securityfocus.com/bid/63696
https://access.redhat.com/security/cve/cve-2013-4584
https://exchange.xforce.ibmcloud.com/vulnerabilities/89184
https://github.com/horms/perdition/commit/62a0ce94aeb7dd99155882956ce9e327ab914ddf
https://security-tracker.debian.org/tracker/CVE-2013-4584
http://www.openwall.com/lists/oss-security/2013/11/15/6
http://www.securityfocus.com/bid/63696
https://access.redhat.com/security/cve/cve-2013-4584
https://exchange.xforce.ibmcloud.com/vulnerabilities/89184
https://github.com/horms/perdition/commit/62a0ce94aeb7dd99155882956ce9e327ab914ddf
https://security-tracker.debian.org/tracker/CVE-2013-4584

Get alerted when CVE-2013-4584 or the next vulnerability affects your stack