CVE-2011-1926

The STARTTLS implementation in Cyrus IMAP Server before 2.4.7 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.1 UNKNOWN
NETWORK
HIGH
AV:N/AC:H/Au:N/C:P/I:P/A:P
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
cmucyrus_imap_server
𝑥
≤ 2.4.6
cmucyrus_imap_server
2.0.17
cmucyrus_imap_server
2.1.16
cmucyrus_imap_server
2.1.17
cmucyrus_imap_server
2.1.18
cmucyrus_imap_server
2.2.8
cmucyrus_imap_server
2.2.9
cmucyrus_imap_server
2.2.10
cmucyrus_imap_server
2.2.11
cmucyrus_imap_server
2.2.12
cmucyrus_imap_server
2.2.13
cmucyrus_imap_server
2.2.13p1:p1
cmucyrus_imap_server
2.3.0
cmucyrus_imap_server
2.3.1
cmucyrus_imap_server
2.3.2
cmucyrus_imap_server
2.3.3
cmucyrus_imap_server
2.3.4
cmucyrus_imap_server
2.3.5
cmucyrus_imap_server
2.3.6
cmucyrus_imap_server
2.3.7
cmucyrus_imap_server
2.3.8
cmucyrus_imap_server
2.3.9
cmucyrus_imap_server
2.3.10
cmucyrus_imap_server
2.3.11
cmucyrus_imap_server
2.3.12
cmucyrus_imap_server
2.3.13
cmucyrus_imap_server
2.3.14
cmucyrus_imap_server
2.3.15
cmucyrus_imap_server
2.3.16
cmucyrus_imap_server
2.4.0
cmucyrus_imap_server
2.4.1
cmucyrus_imap_server
2.4.2
cmucyrus_imap_server
2.4.3
cmucyrus_imap_server
2.4.4
cmucyrus_imap_server
2.4.5
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
cyrus-imapd-2.2
raring
dne
quantal
dne
precise
dne
oneiric
ignored
natty
ignored
maverick
Fixed 2.2.13-19squeeze1build0.10.10.1
released
lucid
Fixed 2.2.13-19squeeze1build0.10.04.1
released
hardy
ignored
dapper
ignored
cyrus-imapd-2.4
raring
not-affected
quantal
not-affected
precise
not-affected
oneiric
not-affected
natty
dne
maverick
dne
lucid
dne
hardy
dne
dapper
dne
Common Weakness Enumeration
References