Description
A flaw was discovered in fence-agents, prior to version 4.3.4, where using non-ASCII characters in a guest VM's comment or other fields would cause fence_rhevm to exit with an exception. In cluster environments, this could lead to preventing automated recovery or otherwise denying service to clusters of which that VM is a member.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ClusterLabs | fence-agents | fixed in 4.3.4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | fence-agents | 4.3.3-2 | — |
| Debian 13 | fence-agents | 4.3.3-2 | — |
| Debian 12 | fence-agents | 4.3.3-2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | fence-agents +43 | 4.2.1-24.el7 | RHSA-2019:2037 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | fence-agents | 4.4.0+git.1558595666.5f79f9e9-7.5.1 | SUSE-SU-2019:1819-1 |
| SLES 15 | fence-agents | 4.4.0+git.1558595666.5f79f9e9-4.6.1 | SUSE-SU-2019:1813-1 |
| SLES 12 SP4 | fence-agents | 4.4.0+git.1558595666.5f79f9e9-3.5.1 | SUSE-SU-2019:1809-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Manager Server Module 4.0 | fence-agents | 4.4.0+git.1558595666.5f79f9e9-7.5.1 | SUSE-SU-2019:1819-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | fence-agents | 4.10.0+git.1627556580.31443c15-1.2 | openSUSE-SU-2024:10752-1 |
| openSUSE Leap 15.1 | fence-agents | 4.4.0+git.1558595666.5f79f9e9-lp151.2.3.1 | openSUSE-SU-2019:1751-1 |
| openSUSE Leap 15.0 | fence-agents | 4.4.0+git.1558595666.5f79f9e9-lp150.2.10.1 | openSUSE-SU-2019:1719-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | fence-agents-all +39 | 4.2.1-24.amzn2.0.3 | ALAS2-2019-1348 |
Advisories 9
- WID-SEC-2022-0517 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2019:2037 Red Hat Security Advisory: fence-agents security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2019:1751-1 Security update for fence-agents SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1719-1 Security update for fence-agents SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1809-1 Security update for fence-agents SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10752-1 fence-agents-4.10.0+git.1627556580.31443c15-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1819-1 Security update for fence-agents SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1813-1 Security update for fence-agents SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2019-1348 Moderate: fence-agents security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 7, 2019