Description
In FRRouting (FRR) through 9.1, it is possible for the get_edge() function in ospf_te.c in the OSPF daemon to return a NULL pointer. In cases where calling functions do not handle the returned NULL value, the OSPF daemon crashes, leading to denial of service.
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 | frr | 10.0.1-0.1 | — |
| Debian 13 | frr | 10.0.1-0.1 | — |
| Debian 12 | frr | 8.4.4-1.1~deb12u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | frr | 8.4.4-1.1ubuntu6.1 | USN-6794-1 |
| Ubuntu 22.04 LTS | frr | 8.1-1ubuntu1.10 | USN-6794-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | frr | 8.4-150500.4.23.1 | SUSE-SU-2024:4090-1, SUSE-SU-2024:1971-1 |
| SLES 15 SP5 | frr | 8.4-150500.4.23.1 | SUSE-SU-2024:4090-1, SUSE-SU-2024:1971-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | frr | 8.4-12.1 | openSUSE-SU-2024:14038-1 |
| openSUSE Leap 15.6 | frr | 8.4-150500.4.23.1 | SUSE-SU-2024:4090-1, SUSE-SU-2024:1971-1 |
| openSUSE Leap 15.5 | frr | 8.4-150500.4.23.1 | SUSE-SU-2024:4090-1, SUSE-SU-2024:1971-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | frr | 8.5.3-6 | — |
Advisories 5
- WID-SEC-2024-1009 FRRouting Project FRRouting: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 4, 2026
- USN-6794-1 frr vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:14038-1 frr-8.4-12.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4090-1 Security update for frr SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1971-1 Security update for frr SUSE / openSUSE Security Updates · Feb 4, 2026