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CVE-2017-15132

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results...

7.5 HighFix available

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

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
None
Integrity
None
Availability
High

Exploit likelihood

3.12%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
CVE-2017-15132
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-400, CWE-772
Updated
2026-11-02
CVE List No score

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
CVE-2017-15132
Weakness
CWE-400
Updated
2026-11-02
EUVDEUVD-2017-6593 No score

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
EUVD-2017-6593
Updated
2026-11-03
GitHub AdvisoriesGHSA-f5gc-665w-jv83 7.5

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results...

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
GHSA-f5gc-665w-jv83
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-772
Updated
2026-11-02
OSVALPINE-CVE-2017-15132 7.5

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
ALPINE-CVE-2017-15132
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 7.5

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
CVE-2017-15132
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 9 moreShow less
OSVDEBIAN-CVE-2017-15132 7.5

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
DEBIAN-CVE-2017-15132
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2017-15132 7.5

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion.

Record
UBUNTU-CVE-2017-15132
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCLSA-2026-1777463410 No score

dovecot: Fix of CVE-2017-15132

  • CVE-2017-15132: fix memory leak and hash-table use-after-free in auth_client_request_abort() (lib-auth). Squashed upstream commits 1a29ed2f96da and a9b135760aea.
Record
CLSA-2026-1777463410
Updated
2026-11-02
OSVCLSA-2026-1777463708 No score

dovecot: Fix of CVE-2017-15132

  • CVE-2017-15132: fix memory leak and hash-table use-after-free in auth_client_request_abort() (lib-auth). Squashed upstream commits 1a29ed2f96da and a9b135760aea.
Record
CLSA-2026-1777463708
Updated
2026-11-02
OSVMGASA-2018-0114 No score

Updated dovecot packages fix security vulnerability

A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion. (CVE-2017-15132).

Record
MGASA-2018-0114
Updated
2026-11-02
OSVopenSUSE-SU-2024:10726-1 No score

dovecot23-2.3.16-1.6 on GA media

These are all security issues fixed in the dovecot23-2.3.16-1.6 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10726-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:14715-1 No score

dovecot24-2.4.0-1.1 on GA media

These are all security issues fixed in the dovecot24-2.4.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:14715-1
Updated
2026-11-02
OSVSUSE-SU-2018:0466-1 No score

Security update for dovecot22

This update for dovecot22 fixes one issue.

This security issue was fixed:

  • CVE-2017-15132: An abort of SASL authentication resulted in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion (bsc#1075608).
Record
SUSE-SU-2018:0466-1
Updated
2026-11-02
OSVUSN-3556-1 No score

dovecot vulnerability

It was discovered that Dovecot incorrectly handled certain authentications. An attacker could possibly use this to cause a denial of service.

Record
USN-3556-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
dovecot
Alpine:v3.10
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.11
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.12
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.13
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.14
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.15
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.16
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.17
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.18
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.19
2.0.0 up to 2.3.1-r0
2.3.1-r0
Show 37 moreShow less
Affected packages
PackageAffectedFixed
dovecot
Alpine:v3.20
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.21
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.22
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.23
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.24
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.7
2.0.0 up to 2.2.34-r0
2.2.34-r0
dovecot
Alpine:v3.8
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
Alpine:v3.9
2.0.0 up to 2.3.1-r0
2.3.1-r0
dovecot
TuxCare:OracleLinux:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-devel
TuxCare:OracleLinux:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-mysql
TuxCare:OracleLinux:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-pgsql
TuxCare:OracleLinux:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-pigeonhole
TuxCare:OracleLinux:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot
TuxCare:CentOS:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-devel
TuxCare:CentOS:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-mysql
TuxCare:CentOS:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-pgsql
TuxCare:CentOS:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot-pigeonhole
TuxCare:CentOS:6
before 1:2.0.9-23.el6.tuxcare.els3
1:2.0.9-23.el6.tuxcare.els3
dovecot
Debian:12
before 1:2.2.34-1
1:2.2.34-1
dovecot
Debian:13
before 1:2.2.34-1
1:2.2.34-1
dovecot
Debian:14
before 1:2.2.34-1
1:2.2.34-1
dovecot
Debian:7
From an advisory covering 3 CVEs
before 1:2.1.7-7+deb7u2, plus listed versions
1:2.1.7-71:2.1.7-7+deb7u1
1:2.1.7-7+deb7u2
dovecot
Debian:8
From an advisory covering 3 CVEs
before 1:2.2.13-12~deb8u4, plus listed versions
1:2.2.13-111:2.2.13-12~deb8u11:2.2.13-12~deb8u21:2.2.13-12~deb8u3
1:2.2.13-12~deb8u4
dovecot
Debian:9
From an advisory covering 3 CVEs
before 1:2.2.27-3+deb9u2, plus listed versions
1:2.2.27-31:2.2.27-3+deb9u11:2.2.27-3+deb9u2~bpo8+1
1:2.2.27-3+deb9u2
dovecot
Mageia:5
before 2.2.13-5.6.mga5
2.2.13-5.6.mga5
dovecot
Mageia:6
before 2.2.29.1-1.2.mga6
2.2.29.1-1.2.mga6
dovecot22
SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot22
SUSE:Linux Enterprise Software Development Kit 12 SP2
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot22
SUSE:Linux Enterprise Software Development Kit 12 SP3
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot22
SUSE:Linux Enterprise Server 12 SP2
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot22
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot22
SUSE:Linux Enterprise Server 12 SP3
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot22
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
before 2.2.31-19.5.1
2.2.31-19.5.1
dovecot
Ubuntu:14.04:LTS
before 1:2.2.9-1ubuntu2.3, plus listed versions
1:2.1.7-7ubuntu31:2.2.9-1ubuntu11:2.2.9-1ubuntu21:2.2.9-1ubuntu2.1
1:2.2.9-1ubuntu2.3
dovecot
Ubuntu:16.04:LTS
before 1:2.2.22-1ubuntu2.6, plus listed versions
1:2.2.18-2ubuntu21:2.2.22-1ubuntu11:2.2.22-1ubuntu21:2.2.22-1ubuntu2.11:2.2.22-1ubuntu2.21:2.2.22-1ubuntu2.31:2.2.22-1ubuntu2.4
1:2.2.22-1ubuntu2.6
dovecot23
openSUSE:Tumbleweed
From an advisory covering 22 CVEs
before 2.3.16-1.6
2.3.16-1.6
dovecot24
openSUSE:Tumbleweed
From an advisory covering 24 CVEs
before 2.4.0-1.1
2.4.0-1.1

History

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

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

In short

CVE-2017-15132 is a high vulnerability (CVSS 7.5) in Dovecot, published January 25, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.12%, the 87th percentile. Fixed in dovecot 2.3.1-r0.

References

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