Every CVE Search/ Get API key

CVE-2019-15522

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects...

9.8 CriticalFix available

CVE-2019-15522 is a critical vulnerability (CVSS 9.8) in Linbit Csync2, published March 20, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.90%, the 79th percentile. Fixed in csync2 2.0-r3.

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

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

1.90%Up 1.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
CVE-2019-15522
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
CVE-2019-15522
Updated
2026-11-02
EUVDEUVD-2019-6507 No score

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
EUVD-2019-6507
Updated
2026-11-03
GitHub AdvisoriesGHSA-384j-hgrr-qp35 No score

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects...

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
GHSA-384j-hgrr-qp35
Updated
2026-11-02
OSVALPINE-CVE-2019-15522 9.8

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
ALPINE-CVE-2019-15522
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSV 9.8

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
CVE-2019-15522
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 7 moreShow less
OSVDEBIAN-CVE-2019-15522 9.8

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
DEBIAN-CVE-2019-15522
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-15522 9.8

An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command when the configuration requires use of SSL.

Record
UBUNTU-CVE-2019-15522
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2021:0853-1 No score

Security update for csync2

This update for csync2 fixes the following issues:

  • CVE-2019-15522: Fixed an issue where daemon fails to enforce TLS (bsc#1147137)
  • CVE-2019-15523: Fixed an incorrect TLS handshake error handling (bsc#1147139)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2021:0853-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10706-1 No score

csync2-2.0+git.1600444747.83b3644-1.3 on GA media

These are all security issues fixed in the csync2-2.0+git.1600444747.83b3644-1.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10706-1
Updated
2026-11-02
OSVSUSE-SU-2021:14763-1 No score

Security update for csync2

This update for csync2 fixes the following issues:

  • CVE-2019-15522: Fixed an issue where daemon fails to enforce TLS (bsc#1147137)
  • Fixed an issue where the TLS keys were not created correctly during installation (bsc#1145032)
Record
SUSE-SU-2021:14763-1
Updated
2026-11-02
OSVSUSE-SU-2021:1858-1 No score

Security update for csync2

This update for csync2 fixes the following issues:

  • CVE-2019-15522: Fixed an issue where daemon fails to enforce TLS (bsc#1147137)
  • CVE-2019-15523: Fixed an incorrect TLS handshake error handling (bsc#1147139)
Record
SUSE-SU-2021:1858-1
Updated
2026-11-02
OSVSUSE-SU-2021:1952-1 No score

Security update for csync2

This update for csync2 fixes the following issues:

  • CVE-2019-15522: Fixed an issue where daemon fails to enforce TLS (bsc#1147137)
  • CVE-2019-15523: Fixed an incorrect TLS handshake error handling (bsc#1147139)
Record
SUSE-SU-2021:1952-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
csync2
Alpine:v3.14
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.15
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.16
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.17
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.18
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.19
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.20
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.21
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.22
 before 2.0-r3
2.0-r3
csync2
Alpine:v3.23
 before 2.0-r3
2.0-r3
Show 16 moreShow less
Affected packages
PackageAffectedFixed
csync2
Alpine:v3.24
 before 2.0-r3
2.0-r3
csync2
Debian:12
 before 2.0-25-gc0faaf9-1
2.0-25-gc0faaf9-1
csync2
Debian:13
 before 2.0-25-gc0faaf9-1
2.0-25-gc0faaf9-1
csync2
Debian:14
 before 2.0-25-gc0faaf9-1
2.0-25-gc0faaf9-1
csync2
SUSE:Linux Enterprise High Availability Extension 11 SP4
 before 1.34-0.13.7.1
1.34-0.13.7.1
csync2
SUSE:Linux Enterprise High Availability Extension 15
 before 2.0+git.1461714863.10636a4-4.6.1
2.0+git.1461714863.10636a4-4.6.1
csync2
SUSE:Linux Enterprise High Availability Extension 15 SP1
 before 2.0+git.1461714863.10636a4-4.6.1
2.0+git.1461714863.10636a4-4.6.1
csync2
SUSE:Linux Enterprise High Availability Extension 15 SP2
 before 2.0+git.1461714863.10636a4-4.6.1
2.0+git.1461714863.10636a4-4.6.1
csync2
SUSE:Linux Enterprise High Availability Extension 12 SP3
 before 2.0+git.1368794815.cf835a7-3.9.5
2.0+git.1368794815.cf835a7-3.9.5
csync2
SUSE:Linux Enterprise High Availability Extension 12 SP4
 before 2.0+git.1368794815.cf835a7-3.9.5
2.0+git.1368794815.cf835a7-3.9.5
csync2
SUSE:Linux Enterprise High Availability Extension 12 SP5
 before 2.0+git.1368794815.cf835a7-3.9.5
2.0+git.1368794815.cf835a7-3.9.5
csync2
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.0+73d3293-22.0+73d3293-2build12.0+73d3293-2build2
 None known
csync2
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.0-8-g175a01c-4ubuntu1
 None known
csync2
Ubuntu:20.04:LTS
 All versions, plus listed versions
2.0-8-g175a01c-4ubuntu22.0-22-gce67c55-1ubuntu1
 None known
csync2
openSUSE:Leap 15.2
 before 2.0+git.1461714863.10636a4-lp152.5.3.1
2.0+git.1461714863.10636a4-lp152.5.3.1
csync2
openSUSE:Tumbleweed
 before 2.0+git.1600444747.83b3644-1.3
2.0+git.1600444747.83b3644-1.3

History

History
WhenChangedSources
2026-11-03affected, aliases, referencesOSV
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

Show 11 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open