Description
It was found that cockpit before version 184 used glib's base64 decode functionality incorrectly resulting in a denial of service attack. An unauthenticated attacker could send a specially crafted request with an invalid base64-encoded cookie which could cause the web service to crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| [UNKNOWN] | cockpit | 184 | — |
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 | cockpit | 184-1 | — |
| Debian 13 | cockpit | 184-1 | — |
| Debian 12 | cockpit | 184-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | cockpit | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | cockpit +5 | 173.2-1.el7 | RHSA-2019:0482 |
| RHEL 7 | redhat-release-virtualization-host +1 | 4.3-0.8.el7 | RHSA-2019:1569 |
| RHEL 7 | redhat-virtualization-host +1 | 4.3-20190610.0.el7_6 | RHSA-2019:1569 |
| RHEL 7 | rhvm-appliance | 2:4.3-20190605.0.el7 | RHSA-2019:1571 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | cockpit +5 | 173.2-1.0.1.el7 | ELSA-2019-0482 |
Advisories 4
- RHSA-2019:1571 Red Hat Security Advisory: rhvm-appliance security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:1569 Red Hat Security Advisory: redhat-virtualization-host security and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:0482 Red Hat Security Advisory: cockpit security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- ELSA-2019-0482 Moderate: cockpit security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 12, 2019