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CVE-2016-10727

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server...

9.8 CriticalFix available

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.89%Up 1.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
CVE-2016-10727
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
CVE-2016-10727
Updated
2026-11-02
EUVDEUVD-2016-1725 No score

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
EUVD-2016-1725
Updated
2026-11-03
GitHub AdvisoriesGHSA-7xwg-339m-2rw9 9.8

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server...

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
GHSA-7xwg-339m-2rw9
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-200
Updated
2026-11-02
OSV 9.8

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
CVE-2016-10727
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2016-10727 9.8

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
DEBIAN-CVE-2016-10727
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHBA-2016:2206 5.3

Red Hat Bug Fix Advisory: evolution-data-server bug fix update

Record
RHBA-2016:2206
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2016-10727 9.8

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

Record
UBUNTU-CVE-2016-10727
CVSS 3.0
9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUSN-3724-1 No score

evolution-data-server vulnerability

Jon Kristensen discovered that Evolution Data Server would automatically downgrade a connection to an IMAP server if the IMAP server did not support SSL. This would result in the user's password being unexpectedly sent in clear text, even though the user had requested to use SSL.

Record
USN-3724-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
evolution-data-server
Debian:12
 before 3.22.0-2
3.22.0-2
evolution-data-server
Debian:13
 before 3.22.0-2
3.22.0-2
evolution-data-server
Debian:14
 before 3.22.0-2
3.22.0-2
evolution-data-server
Debian:8
 before 3.12.9~git20141128.5242b0-2+deb8u4, plus listed versions
3.12.9~git20141128.5242b0-2+deb8u23.12.9~git20141128.5242b0-2+deb8u3
3.12.9~git20141128.5242b0-2+deb8u4
evolution-data-server-debuginfo
Red Hat:enterprise_linux:7::client
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-devel
Red Hat:enterprise_linux:7::client
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-doc
Red Hat:enterprise_linux:7::client
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-mapi-debuginfo
Red Hat:enterprise_linux:7::client
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
evolution-mapi-devel
Red Hat:enterprise_linux:7::client
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
openchange-client
Red Hat:enterprise_linux:7::client
 before 0:2.3-2.el7
0:2.3-2.el7
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Affected packages
PackageAffectedFixed
openchange-debuginfo
Red Hat:enterprise_linux:7::client
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-devel
Red Hat:enterprise_linux:7::client
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-devel-docs
Red Hat:enterprise_linux:7::client
 before 0:2.3-2.el7
0:2.3-2.el7
evolution-data-server
Red Hat:enterprise_linux:7::client
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-ews
Red Hat:enterprise_linux:7::client
 before 0:3.12.11-9.el7
0:3.12.11-9.el7
evolution-ews-debuginfo
Red Hat:enterprise_linux:7::client
 before 0:3.12.11-9.el7
0:3.12.11-9.el7
evolution-mapi
Red Hat:enterprise_linux:7::client
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
openchange
Red Hat:enterprise_linux:7::client
 before 0:2.3-2.el7
0:2.3-2.el7
evolution-data-server
Red Hat:enterprise_linux:7::computenode
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-debuginfo
Red Hat:enterprise_linux:7::computenode
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-devel
Red Hat:enterprise_linux:7::computenode
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-doc
Red Hat:enterprise_linux:7::computenode
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-debuginfo
Red Hat:enterprise_linux:7::server
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-devel
Red Hat:enterprise_linux:7::server
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-doc
Red Hat:enterprise_linux:7::server
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-ews
Red Hat:enterprise_linux:7::server
 before 0:3.12.11-9.el7
0:3.12.11-9.el7
evolution-ews-debuginfo
Red Hat:enterprise_linux:7::server
 before 0:3.12.11-9.el7
0:3.12.11-9.el7
evolution-mapi
Red Hat:enterprise_linux:7::server
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
evolution-mapi-debuginfo
Red Hat:enterprise_linux:7::server
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
evolution-mapi-devel
Red Hat:enterprise_linux:7::server
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
openchange
Red Hat:enterprise_linux:7::server
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-client
Red Hat:enterprise_linux:7::server
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-debuginfo
Red Hat:enterprise_linux:7::server
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-devel
Red Hat:enterprise_linux:7::server
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-devel-docs
Red Hat:enterprise_linux:7::server
 before 0:2.3-2.el7
0:2.3-2.el7
evolution-data-server
Red Hat:enterprise_linux:7::server
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-doc
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-mapi-debuginfo
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
evolution-mapi-devel
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
openchange-client
Red Hat:enterprise_linux:7::workstation
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-debuginfo
Red Hat:enterprise_linux:7::workstation
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-devel
Red Hat:enterprise_linux:7::workstation
 before 0:2.3-2.el7
0:2.3-2.el7
openchange-devel-docs
Red Hat:enterprise_linux:7::workstation
 before 0:2.3-2.el7
0:2.3-2.el7
evolution-data-server
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-debuginfo
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-data-server-devel
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.11-37.el7
0:3.12.11-37.el7
evolution-ews
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.11-9.el7
0:3.12.11-9.el7
evolution-ews-debuginfo
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.11-9.el7
0:3.12.11-9.el7
evolution-mapi
Red Hat:enterprise_linux:7::workstation
 before 0:3.12.10-5.el7
0:3.12.10-5.el7
openchange
Red Hat:enterprise_linux:7::workstation
 before 0:2.3-2.el7
0:2.3-2.el7
evolution-data-server
Ubuntu:14.04:LTS
 before 3.10.4-0ubuntu1.6, plus listed versions
3.8.5-1ubuntu33.8.5-1ubuntu43.10.1-2ubuntu23.10.1-2ubuntu33.10.3-0ubuntu1
Show 6 moreShow less
3.10.3-0ubuntu23.10.4-0ubuntu13.10.4-0ubuntu1.13.10.4-0ubuntu1.23.10.4-0ubuntu1.33.10.4-0ubuntu1.5
3.10.4-0ubuntu1.6
evolution-data-server
Ubuntu:16.04:LTS
 before 3.18.5-1ubuntu1.1, plus listed versions
3.16.5-1ubuntu33.18.1-1ubuntu13.18.2-0ubuntu13.18.2-0ubuntu23.18.3-1ubuntu13.18.3-1ubuntu23.18.4-0ubuntu13.18.5-1ubuntu1
3.18.5-1ubuntu1.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-10727 is a critical vulnerability (CVSS 9.8) in Gnome Evolution, published July 20, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.89%, the 86th percentile. Fixed in evolution-data-server 3.22.0-2.

References

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