What’s Vulnerable › Vulnerabilities

CVE-2021-38370

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-10 · updated 2026-06-17
• Weakness: CWE-77

Description

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS.

Affected products

• stevespringett alpine: before 2.25 — fixed in 2.25

How to fix

Upgrade to a fixed version: stevespringett alpine 2.25. Check the vendor advisory for mitigations.

References

• https://alpine.x10host.com
• https://bugs.gentoo.org/807613#c4
• https://nostarttls.secvuln.info
• https://security.gentoo.org/glsa/202301-07
• https://alpine.x10host.com
• https://bugs.gentoo.org/807613#c4
• https://nostarttls.secvuln.info
• https://security.gentoo.org/glsa/202301-07

Get alerted when CVE-2021-38370 or the next vulnerability affects your stack