Description
It was discovered that fsync(2) system call in glusterfs client code leaks memory. An authenticated attacker could use this flaw to launch a denial of service attack by making gluster clients consume memory of the host machine.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | glusterfs | — | — |
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 | glusterfs | 4.0.1-1 | — |
| Debian 13 | glusterfs | 4.0.1-1 | — |
| Debian 12 | glusterfs | 4.0.1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | glusterfs | 3.13.2-1ubuntu1+esm1 | USN-4770-1 |
| Ubuntu Pro 16.04 LTS | glusterfs | 3.7.6-1ubuntu1+esm1 | USN-4770-1 |
| Ubuntu Pro 14.04 LTS | glusterfs | 3.4.2-1ubuntu1+esm1 | USN-4770-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | glusterfs | 3.12.15-lp151.3.3.1 | openSUSE-SU-2020:0079-1 |
Advisories 2
- USN-4770-1 glusterfs vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- openSUSE-SU-2020:0079-1 Security update for glusterfs SUSE / openSUSE Security Updates · Feb 4, 2026