CVE-2015-3156

Openstack DBaaS (Trove) Improper Link Resolution Before File Access

5.5 MediumFix available

The _write_config function in trove/guestagent/datastore/experimental/mongodb/service.py, reset_configuration function in trove/guestagent/datastore/experimental/postgresql/service/config.py, write_config function in trove/guestagent/datastore/experimental/redis/service.py, _write_mycnf function in trove/guestagent/datastore/mysql/service.py, InnoBackupEx::_run_prepare function in trove/guestagent/strategies/restore/mysql_impl.py, InnoBackupEx::cmd function in trove/guestagent/strategies/backup/mysql_impl.py, MySQLDump::cmd in trove/guestagent/strategies/backup/mysql_impl.py, InnoBackupExIncremental::cmd function in trove/guestagent/strategies/backup/mysql_impl.py, _get_actual_db_status function in trove/guestagent/datastore/experimental/cassandra/system.py and trove/guestagent/datastore/experimental/cassandra/service.py, and multiple class CbBackup methods in trove/guestagent/strategies/backup/experimental/couchbase_impl.py in Openstack DBaaS (aka Trove) as packaged in Openstack before 2015.1.0 (aka Kilo) allows local users to write to configuration files via a symlink attack on a temporary file.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

0.46%Down 0.8 points since Feb 4, 2022

What each source reports

NVD Score used 5.5

Record: CVE-2015-3156
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:N/I:P/A:N
Weakness: CWE-59
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-3156
Updated: 2026-11-02

EUVDEUVD-2022-3323 No score

Record: EUVD-2022-3323
Updated: 2026-11-03

GitHub AdvisoriesGHSA-98c8-36p9-gw66 5.5

Openstack DBaaS (Trove) Improper Link Resolution Before File Access

The _write_config function in trove/guestagent/datastore/experimental/mongodb/service.py, reset_configuration function in trove/guestagent/datastore/experimental/postgresql/service/config.py, write_config function in trove/guestagent/datastore/experimental/redis/service.py, _write_mycnf function in trove/guestagent/datastore/mysql/service.py, InnoBackupEx::_run_prepare function in trove/guestagent/strategies/restore/mysql_impl.py, InnoBackupEx::cmd function in trove/guestagent/strategies/backup/mysql_impl.py,MySQLDump::cmd in trove/guestagent/strategies/backup/mysql_impl.py, InnoBackupExIncremental::cmd function in trove/guestagent/strategies/backup/mysql_impl.py, _get_actual_db_status function in trove/guestagent/datastore/experimental/cassandra/system.py and trove/guestagent/datastore/experimental/cassandra/service.py, and multiple class CbBackup methods in trove/guestagent/strategies/backup/experimental/couchbase_impl.py in Openstack DBaaS (aka Trove) as packaged in Openstack before 2015.1.0 (aka Kilo) allows local users to write to configuration files via a symlink attack on a temporary file.

Record: GHSA-98c8-36p9-gw66
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-59
Updated: 2026-11-02

OSV 5.5

Record: CVE-2015-3156
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2015-3156 5.5

Record: DEBIAN-CVE-2015-3156
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

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OSVGHSA-98c8-36p9-gw66 5.5

Openstack DBaaS (Trove) Improper Link Resolution Before File Access

Record: GHSA-98c8-36p9-gw66
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-59
Updated: 2026-11-02

OSVPYSEC-2026-1053 5.5

Openstack DBaaS (Trove) Improper Link Resolution Before File Access

Record: PYSEC-2026-1053
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2015-3156 5.5

Record: UBUNTU-CVE-2015-3156
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVSUSE-SU-2016:0739-1 No score

Security update for openstack-trove

This update for openstack-trove fixes the following issues:

Fix multiple insecure /tmp file usage issues (bsc#929535, CVE-2015-3156).

Record: SUSE-SU-2016:0739-1
Updated: 2026-11-02

Affected products

openstack trove

Affected packages

Affected packages
Package	Affected	Fixed
`trove` PyPI	before 4.0.0a0	4.0.0a0
`openstack-trove` Debian:12	All versions, plus listed versions 1:18.0.0-21:19.0.0-11:19.0.0-21:19.0.0-31:19.0.0-4 Show 26 moreShow less 1:19.0.0~rc1-11:20.0.0-11:20.0.0-21:20.0.0~rc1-11:21.0.0~rc1-11:21.0.1-11:21.0.1-21:22.0.0-11:22.0.0-21:22.0.0-31:22.0.0-41:22.0.0~rc1-11:22.0.0~rc1-21:23.0.0-11:23.0.0-21:23.0.0~rc1-11:23.0.0~rc1-21:24.0.0-11:24.0.0-21:24.0.0~rc1-11:24.0.0~rc1-21:25.0.0-11:25.0.0~rc1-11:25.0.0~rc1-21:25.0.0~rc1-31:25.1.0-1	None known
`openstack-trove` Debian:13	All versions, plus listed versions 1:23.0.0-21:24.0.0-11:24.0.0-21:24.0.0~rc1-11:24.0.0~rc1-2 Show 5 moreShow less 1:25.0.0-11:25.0.0~rc1-11:25.0.0~rc1-21:25.0.0~rc1-31:25.1.0-1	None known
`openstack-trove` Debian:14	All versions, plus listed versions 1:23.0.0-21:24.0.0-11:24.0.0-21:24.0.0~rc1-11:24.0.0~rc1-2 Show 5 moreShow less 1:25.0.0-11:25.0.0~rc1-11:25.0.0~rc1-21:25.0.0~rc1-31:25.1.0-1	None known
`trove` PyPI	before 4.0.0a0, plus listed versions 0.0	4.0.0a0
`openstack-trove` SUSE:OpenStack Cloud 5	before 2014.2.4.juno-15.1	2014.2.4.juno-15.1
`openstack-trove-doc` SUSE:OpenStack Cloud 5	before 2014.2.4.juno-15.1	2014.2.4.juno-15.1
`openstack-trove` Ubuntu:16.04:LTS	All versions, plus listed versions 1:4.0.0-0ubuntu11:5.0.0~b1-0ubuntu11:5.0.0~b2-0ubuntu11:5.0.0~rc1-0ubuntu11:5.0.0-0ubuntu11:5.1.0-0ubuntu11:5.1.1-0ubuntu11:5.1.1-0ubuntu2	None known
`openstack-trove` Ubuntu:18.04:LTS	All versions, plus listed versions 1:8.0.0-0ubuntu11:9.0.0~b3-0ubuntu11:9.0.0~rc1-0ubuntu11:9.0.0-0ubuntu1	None known
`openstack-trove` Ubuntu:20.04:LTS	All versions, plus listed versions 1:12.0.0-0ubuntu11:13.0.0~b1~git2019121815.5472d8a5-0ubuntu11:13.0.0~b2~git2020021315.2d301d0a-0ubuntu11:13.0.0~b3~git2020032626.3cdcfac3-0ubuntu11:13.0.0~b3~git2020041014.8c3df10a-0ubuntu11:13.0.0-0ubuntu0.20.04.1	None known
`openstack-trove` Ubuntu:22.04:LTS	All versions, plus listed versions 2:16.0.0-0ubuntu12:16.0.0-0ubuntu22:16.0.0+git2021120910.be86b791-0ubuntu12:16.0.0+git2022030314.39322f5a-0ubuntu12:17.0.0-0ubuntu12:17.0.0-0ubuntu1.1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2015-3156 is a medium vulnerability (CVSS 5.5) in Openstack Trove, published March 14, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. Fixed in trove 4.0.0a0.

References

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