Red Hat Security Advisory: dovecot security update
Two vulnerabilities in Dovecot, an IMAP and POP3 server, can lead to denial of service or resource exhaustion. CVE-2024-23184 involves triggering a denial of service by using a large number of address headers. CVE-2024-23185 involves resource exhaustion caused by very large headers during message parsing. These issues affect Red Hat Enterprise Linux 8 and related builds. A security update addressing these vulnerabilities is available from Red Hat.
AI Analysis
Technical Summary
Dovecot, a secure IMAP and POP3 server for UNIX-like systems, has two vulnerabilities: CVE-2024-23184 allows denial of service via a large number of address headers, and CVE-2024-23185 causes resource exhaustion when parsing very large headers. Both vulnerabilities relate to improper handling of email headers leading to excessive resource consumption. Red Hat has issued a security advisory (RHSA-2024:6973) providing updates for affected Red Hat Enterprise Linux 8 variants to remediate these issues.
Potential Impact
Exploitation of these vulnerabilities can cause denial of service or resource exhaustion on affected systems running Dovecot, potentially disrupting email services. There are no known exploits in the wild at this time. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released security updates for Dovecot in Red Hat Enterprise Linux 8 to address these vulnerabilities. Users should apply the updates as described in the Red Hat advisory RHSA-2024:6973 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation is indicated by the vendor.
Red Hat Security Advisory: dovecot security update
Description
Two vulnerabilities in Dovecot, an IMAP and POP3 server, can lead to denial of service or resource exhaustion. CVE-2024-23184 involves triggering a denial of service by using a large number of address headers. CVE-2024-23185 involves resource exhaustion caused by very large headers during message parsing. These issues affect Red Hat Enterprise Linux 8 and related builds. A security update addressing these vulnerabilities is available from Red Hat.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Dovecot, a secure IMAP and POP3 server for UNIX-like systems, has two vulnerabilities: CVE-2024-23184 allows denial of service via a large number of address headers, and CVE-2024-23185 causes resource exhaustion when parsing very large headers. Both vulnerabilities relate to improper handling of email headers leading to excessive resource consumption. Red Hat has issued a security advisory (RHSA-2024:6973) providing updates for affected Red Hat Enterprise Linux 8 variants to remediate these issues.
Potential Impact
Exploitation of these vulnerabilities can cause denial of service or resource exhaustion on affected systems running Dovecot, potentially disrupting email services. There are no known exploits in the wild at this time. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released security updates for Dovecot in Red Hat Enterprise Linux 8 to address these vulnerabilities. Users should apply the updates as described in the Red Hat advisory RHSA-2024:6973 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation is indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:6973
- Cve Count
- 2
- Additional Cves
- ["CVE-2024-23185"]
Threat ID: 6a3da1ef4853345fc1831bb0
Added to database: 06/25/2026, 21:47:27 UTC
Last enriched: 06/25/2026, 22:43:22 UTC
Last updated: 09/10/2026, 19:36:47 UTC
Views: 27
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