CVE-2021-38370
CVE-2021-38370 is a medium-severity vulnerability in Alpine Project Alpine with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: Medium (CVSS 3.x base score 5.9)
- CVSS v2: 4.3
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-77
- Affected product: Alpine Project Alpine
- Published:
- Last modified:
Description
In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS.
Frequently asked questions
- What is CVE-2021-38370?
- In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS.
- How severe is CVE-2021-38370?
- CVE-2021-38370 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2021-38370 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-38370?
- CVE-2021-38370 affects Alpine Project Alpine. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-38370?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-38370 published?
- CVE-2021-38370 was published on 2021-08-10 and last updated on 2026-06-17.
References
- https://alpine.x10host.com
- https://bugs.gentoo.org/807613#c4
- https://nostarttls.secvuln.info
- https://security.gentoo.org/glsa/202301-07
Affected products (1)
- cpe:2.3:a:alpine_project:alpine:*:*:*:*:*:*:*:*
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