CVE-2010-4533

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-13 · updated 2026-06-16
Weakness: CWE-295

Description

offlineimap before 6.3.4 added support for SSL server certificate validation but it is still possible to use SSL v2 protocol, which is a flawed protocol with multiple security deficiencies.

Affected products

Debian Linux: 8.0, 9.0, 10.0
offlineimap: before 6.3.4 — fixed in 6.3.4

How to fix

Upgrade to a fixed version: offlineimap 6.3.4. Check the vendor advisory for mitigations.

References

https://access.redhat.com/security/cve/cve-2010-4533
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606962
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4533
https://security-tracker.debian.org/tracker/CVE-2010-4533
https://www.openwall.com/lists/oss-security/2010/12/23/2
https://access.redhat.com/security/cve/cve-2010-4533
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606962
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4533
https://security-tracker.debian.org/tracker/CVE-2010-4533
https://www.openwall.com/lists/oss-security/2010/12/23/2

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