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...
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
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 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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 High
CVSS: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
| Package | Affected | Fixed |
|---|---|---|
dovecotAlpine:v3.10 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.11 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.12 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.13 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.14 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.15 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.16 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.17 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.18 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.19 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
Show 37 moreShow less
| Package | Affected | Fixed |
|---|---|---|
dovecotAlpine:v3.20 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.21 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.22 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.23 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.24 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.7 |
2.0.0 up to 2.2.34-r0 | 2.2.34-r0 |
dovecotAlpine:v3.8 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotAlpine:v3.9 |
2.0.0 up to 2.3.1-r0 | 2.3.1-r0 |
dovecotTuxCare:OracleLinux:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-develTuxCare:OracleLinux:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-mysqlTuxCare:OracleLinux:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-pgsqlTuxCare:OracleLinux:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-pigeonholeTuxCare:OracleLinux:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecotTuxCare:CentOS:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-develTuxCare:CentOS:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-mysqlTuxCare:CentOS:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-pgsqlTuxCare:CentOS:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecot-pigeonholeTuxCare:CentOS:6 |
before 1:2.0.9-23.el6.tuxcare.els3 | 1:2.0.9-23.el6.tuxcare.els3 |
dovecotDebian:12 |
before 1:2.2.34-1 | 1:2.2.34-1 |
dovecotDebian:13 |
before 1:2.2.34-1 | 1:2.2.34-1 |
dovecotDebian:14 |
before 1:2.2.34-1 | 1:2.2.34-1 |
dovecotDebian: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 |
dovecotDebian: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 |
dovecotDebian: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 |
dovecotMageia:5 |
before 2.2.13-5.6.mga5 | 2.2.13-5.6.mga5 |
dovecotMageia:6 |
before 2.2.29.1-1.2.mga6 | 2.2.29.1-1.2.mga6 |
dovecot22SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecot22SUSE:Linux Enterprise Software Development Kit 12 SP2 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecot22SUSE:Linux Enterprise Software Development Kit 12 SP3 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecot22SUSE:Linux Enterprise Server 12 SP2 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecot22SUSE:Linux Enterprise Server for SAP Applications 12 SP2 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecot22SUSE:Linux Enterprise Server 12 SP3 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecot22SUSE:Linux Enterprise Server for SAP Applications 12 SP3 |
before 2.2.31-19.5.1 | 2.2.31-19.5.1 |
dovecotUbuntu: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 |
dovecotUbuntu: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 |
dovecot23openSUSE:Tumbleweed From an advisory covering 22 CVEs |
before 2.3.16-1.6 | 2.3.16-1.6 |
dovecot24openSUSE:Tumbleweed From an advisory covering 24 CVEs |
before 2.4.0-1.1 | 2.4.0-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE 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
github.com/dovecot/core/commit/1a29ed2f96da1be22fa5a4d96c7583aa81b8b060.patch
lists.debian.org/debian-lts-announce/2018/03/msg00036.html
bugzilla.redhat.com/show_bug.cgi?id=1532768
debian.org/security/2018/dsa-4130
usn.ubuntu.com/3556-1
usn.ubuntu.com/3556-2
Show 43 moreShow less
dovecot.org/list/dovecot-news/2018-February/000370.html
nvd.nist.gov/vuln/detail/CVE-2017-15132
github.com/advisories/GHSA-f5gc-665w-jv83
security.alpinelinux.org/vuln/CVE-2017-15132
errata.tuxcare.com/els_os/oraclelinux6els/CLSA-2026-1777463410.html
errata.tuxcare.com/els_os/centos6els/CLSA-2026-1777463708.html
security-tracker.debian.org/tracker/CVE-2017-15132
advisories.mageia.org/MGASA-2018-0114.html
bugs.mageia.org/show_bug.cgi?id=22468
openwall.com/lists/oss-security/2018/01/25/4
openwall.com/lists/oss-security/2018/01/31/1
suse.com/support/update/announcement/2018/suse-su-20180466-1
bugzilla.suse.com/1075608
suse.com/security/cve/CVE-2017-15132
ubuntu.com/security/CVE-2017-15132
github.com/dovecot/core/commit/a9b135760aea6d1790d447d351c56b78889dac22.patch
ubuntu.com/security/notices/USN-3556-1
ubuntu.com/security/notices/USN-3556-2
cve.org/CVERecord?id=CVE-2017-15132
suse.com/security/cve/CVE-2017-14461
suse.com/security/cve/CVE-2017-15130
suse.com/security/cve/CVE-2019-10691
suse.com/security/cve/CVE-2019-11494
suse.com/security/cve/CVE-2019-11499
suse.com/security/cve/CVE-2019-11500
suse.com/security/cve/CVE-2019-19722
suse.com/security/cve/CVE-2019-3814
suse.com/security/cve/CVE-2019-7524
suse.com/security/cve/CVE-2020-10957
suse.com/security/cve/CVE-2020-10958
suse.com/security/cve/CVE-2020-10967
suse.com/security/cve/CVE-2020-12100
suse.com/security/cve/CVE-2020-12673
suse.com/security/cve/CVE-2020-12674
suse.com/security/cve/CVE-2020-24386
suse.com/security/cve/CVE-2020-28200
suse.com/security/cve/CVE-2020-7046
suse.com/security/cve/CVE-2020-7957
suse.com/security/cve/CVE-2021-29157
suse.com/security/cve/CVE-2021-33515
lists.opensuse.org/archives/list/[email protected]/thread/KZSDCZ5LA6IHY7KXVSL6ULAJVP6OFT2M
suse.com/security/cve/CVE-2024-23184
suse.com/security/cve/CVE-2024-23185