Description
An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in bgpd/bgp_flowspec.c processes malformed requests with no attributes, leading to a NULL pointer dereference.
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 | 8.4.4-1 | — |
| Debian 13 | frr | 8.4.4-1 | — |
| Debian 12 | frr | 8.4.4-1 | — |
| Debian 11 | frr | 7.5.1-1.1+deb11u3 | DLA-3865-1 |
| Debian 10 | frr | 7.5.1-1.1+deb10u1 | DLA-3573-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | frr | 8.1-1ubuntu1.6 | USN-6436-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | frr | 7.2.1-1ubuntu0.2+esm1 | USN-6436-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | frr +1 | 8.5.3-4.el9 | RHSA-2024:2156 |
| RHEL 8 | frr +1 | 7.5.1-22.el8 | RHSA-2024:2981 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | frr +1 | 8.5.3-4.el9 | ALSA-2024:2156 |
| AlmaLinux 8 | frr +1 | 7.5.1-22.el8 | ALSA-2024:2981 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | frr | 7.5.1-22.el8 | RLSA-2024:2981 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | frr | 8.5.6-150500.4.30.1 | SUSE-SU-2024:4090-1 |
| SLES 15 SP5 | frr | 8.4-150500.4.8.1 | SUSE-SU-2024:4090-1, SUSE-SU-2023:3709-1 |
| SLES 15 SP4 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SLES 15 SP3 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SLE HPC 15 SP3 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SUSE Manager Server 4.2 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SUSE Manager Proxy 4.2 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SUSE Enterprise Storage 7.1 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | frr | 8.4-6.1 | openSUSE-SU-2024:13238-1 |
| openSUSE Leap 15.6 | frr | 8.5.6-150500.4.30.1 | SUSE-SU-2024:4090-1 |
| openSUSE Leap 15.5 | frr | 8.4-150500.4.8.1 | SUSE-SU-2024:4090-1, SUSE-SU-2023:3709-1 |
| openSUSE Leap 15.4 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | frr +1 | 8.5.3-4.el9 | ELSA-2024-2156 |
| Oracle Linux 8 | frr +1 | 7.5.1-22.0.1.el8 | ELSA-2024-2981 |
Advisories 15
- ALSA-2024:2156 Moderate: frr security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2981 Moderate: frr security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:2981 Red Hat Security Advisory: frr security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:2156 Red Hat Security Advisory: frr security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- DLA-3865-1 frr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3573-1 frr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-6436-1 frr vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2024:4090-1 Security update for frr SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13238-1 frr-8.4-6.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3762-1 Security update for frr SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2024:2981 Moderate: frr security update Rocky Linux Security Advisories · May 7, 2025
- SUSE-SU-2023:3709-1 Security update for frr SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-2263 FRRouting Project FRRouting: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 27, 2024
- ELSA-2024-2981 Moderate: frr security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2156 Moderate: frr security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
References
- https://github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8
- [debian-lts-announce] 20230919 [SECURITY] [DLA 3573-1] frr security update mailing-list
- FEDORA-2023-514db5339e vendor-advisory
- FEDORA-2023-ce436d56f8 vendor-advisory
- FEDORA-2023-61abba57d8 vendor-advisory