Description
A flaw was found in GNOME Shell. When processing icons from a remote search provider via D-Bus, the system fails to validate the icon's declared dimensions against the actual data buffer size. A malicious or compromised remote search provider could exploit this by providing oversized icon dimensions, leading to an out-of-bounds read. This can cause the GNOME Shell process to crash, disrupting the user's session, and potentially disclose sensitive information from adjacent memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | gnome-shell | 50.5-1 | — |
| Debian 13 | gnome-shell | No fix yet | — |
| Debian 12 | gnome-shell | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gnome-shell | 50.1-0ubuntu1.5 | USN-8971-1 |
| Ubuntu 24.04 LTS | gnome-shell | 46.0-0ubuntu6~24.04.17 | USN-8971-1 |
| Ubuntu 22.04 LTS | gnome-shell | 42.9-0ubuntu2.4 | USN-8971-1 |
| Ubuntu 20.04 LTS | gnome-shell | No fix yet | — |
| Ubuntu 18.04 LTS | gnome-shell | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | gnome-shell | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | gnome-shell | 45.3-150700.11.6.1 | SUSE-SU-2026:4373-1 |
| SLES 12 SP5 | gnome-shell | 3.20.4-77.31.2 | SUSE-SU-2026:4350-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | gnome-shell | 48.4-160000.2.1 | SUSE-SU-2026:23950-1 |
| SLES 16.0 | gnome-shell | 48.4-160000.2.1 | SUSE-SU-2026:23950-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | gnome-shell | 48.4-160000.2.1 | openSUSE-SU-2026:21976-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | gnome-shell | 47.3-706.amzn2023 | ALAS2023-2026-3432 |
Advisories 6
- ALAS2023-2026-3432 Moderate: gnome-shell security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 12, 2026
- USN-8971-1 gnome-shell vulnerability Ubuntu Security Notices (USN) · Nov 4, 2026
- SUSE-SU-2026:23950-1 Security update for gnome-shell SUSE / openSUSE Security Updates · Oct 2, 2026
- openSUSE-SU-2026:21976-1 Security update for gnome-shell SUSE / openSUSE Security Updates · Oct 1, 2026
- SUSE-SU-2026:4373-1 Security update for gnome-shell SUSE / openSUSE Security Updates · Sep 29, 2026
- SUSE-SU-2026:4350-1 Security update for gnome-shell SUSE / openSUSE Security Updates · Sep 26, 2026