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Debian Security Advisory DSA 2258-1 (kolab-cyrus-imapd)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update to kolab-cyrus-imapd announced via advisory DSA 2258-1.
Insight
Insight
It was discovered that the STARTTLS implementation of the Kolab Cyrus IMAP server does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted IMAP, LMTP, NNTP and POP3 sessions by sending a cleartext command that is processed after TLS is in place. For the oldstable distribution (lenny), this problem has been fixed in version 2.2.13-5+lenny3. For the stable distribution (squeeze), this problem has been fixed in version 2.2.13-9.1. For the testing distribution (wheezy), this problem has been fixed in version 2.2.13p1-0.1. For the unstable distribution (sid), this problem has been fixed in version 2.2.13p1-0.1.
Solution
Solution
We recommend that you upgrade your kolab-cyrus-imapd packages.