Description
FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).
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 | 8.4.4-1.1 | — |
| Debian 13 | frr | 8.4.4-1.1 | — |
| Debian 12 | frr | 8.4.4-1.1~deb12u1 | DSA-5495-1 |
| Debian 11 | frr | 7.5.1-1.1+deb11u2 | DSA-5495-1 |
| 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 | 8.1-1ubuntu1.5 | USN-6323-1 |
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+esm2 | USN-6807-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | frr +1 | 8.3.1-5.el9_2.2 | RHSA-2023:5194 |
| RHEL 8 | frr +1 | 7.5.1-7.el8_8.2 | RHSA-2023:5219 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | frr | 8.0-5.el9_0.1 | RHSA-2023:5457 |
| RHEL 8.6 EUS | frr | 7.5-11.el8_6.2 | RHSA-2023:5195 |
| RHEL 8.4 TUS | frr | 7.5-4.el8_4.4 | RHSA-2023:5196 |
| RHEL 8.4 E4S | frr | 7.5-4.el8_4.4 | RHSA-2023:5196 |
| RHEL 8.4 AUS | frr | 7.5-4.el8_4.4 | RHSA-2023:5196 |
| RHEL 8.2 TUS | frr +1 | 7.0-5.el8_2.1 | RHSA-2023:5465 |
| RHEL 8.2 E4S | frr +1 | 7.0-5.el8_2.1 | RHSA-2023:5465 |
| RHEL 8.2 AUS | frr +1 | 7.0-5.el8_2.1 | RHSA-2023:5465 |
| RHEL 8.1 E4S | frr +1 | 7.0-5.el8_1.1 | RHSA-2023:5464 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | frr +1 | 8.3.1-5.el9_2.2.alma | ALSA-2023:5194 |
| AlmaLinux 8 | frr +1 | 7.5.1-7.el8_8.2.alma.1 | ALSA-2023:5219 |
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 SP5 | quagga | 1.1.1-150400.12.5.1 | SUSE-SU-2023:3839-1 |
| SLES 15 SP4 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SLES 15 SP4 | quagga | 1.1.1-150400.12.5.1 | SUSE-SU-2023:3839-1 |
| SLES 15 SP3 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SLES 15 SP3 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLES 15 SP2 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLES 12 SP5 | quagga | 1.1.1-17.10.1 | SUSE-SU-2023:3793-1 |
| SLES for SAP 15 SP3 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SLES for SAP 15 SP3 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLES for SAP 15 SP2 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLES for SAP 15 SP1 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLES for SAP 12 SP5 | quagga | 1.1.1-17.10.1 | SUSE-SU-2023:3793-1 |
| SLE HPC 15 SP3 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SLE HPC 15 SP3 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLE HPC 15 SP2 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SLE HPC 15 SP1 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SUSE Manager Server 4.2 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SUSE Manager Server 4.2 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SUSE Manager Proxy 4.2 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SUSE Manager Proxy 4.2 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
| SUSE Enterprise Storage 7.1 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| SUSE Enterprise Storage 7.1 | quagga | 1.1.1-150000.4.3.1 | SUSE-SU-2023:3836-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | frr | 8.4-5.1 | openSUSE-SU-2024:13191-1 |
| 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 15.5 | quagga | 1.1.1-150400.12.5.1 | SUSE-SU-2023:3839-1 |
| openSUSE Leap 15.4 | frr | 7.4-150300.4.17.1 | SUSE-SU-2023:3762-1 |
| openSUSE Leap 15.4 | quagga | 1.1.1-150400.12.5.1 | SUSE-SU-2023:3839-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | frr | 8.5.3-2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | frr +1 | 8.3.1-5.el9_2.2 | ELSA-2023-5194 |
| Oracle Linux 8 | frr +1 | 7.5.1-7.0.1.el8_8.2 | ELSA-2023-5219 |
Advisories 26
- ALSA-2023:5194 Important: frr security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:5219 Important: frr security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6807-1 frr vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5495-1 frr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3573-1 frr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-6323-1 frr vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2023:3836-1 Security update for quagga 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-2023:3839-1 Security update for quagga SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3762-1 Security update for frr SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13191-1 frr-8.4-5.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2023:5464 Red Hat Security Advisory: frr security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:5465 Red Hat Security Advisory: frr security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:5457 Red Hat Security Advisory: frr security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:5219 Red Hat Security Advisory: frr security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:5196 Red Hat Security Advisory: frr security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:5195 Red Hat Security Advisory: frr security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2023:5194 Red Hat Security Advisory: frr security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- SSA-455250 SSA-455250: Multiple Vulnerabilities in Palo Alto Networks Virtual NGFW on RUGGEDCOM APE1808 Devices Before V11.1.2-h3 Siemens ProductCERT · May 13, 2025
- ICSA-24-102-04 Siemens RUGGEDCOM APE1808 CISA ICS & IT advisories · May 13, 2025
- SUSE-SU-2023:3793-1 Security update for quagga SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:3709-1 Security update for frr SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-0064 Juniper Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 10, 2025
- WID-SEC-2023-2205 FRRouting Project FRRouting: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Nov 27, 2024
- ELSA-2023-5219 Important: frr security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 20, 2023
- ELSA-2023-5194 Important: frr security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 19, 2023
References
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
- https://news.ycombinator.com/item?id=37305800
- DSA-5495 vendor-advisory
- [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