CVE-2023-38802
Published: 28 August 2023
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).
Notes
| Author | Note |
|---|---|
| sbeattie | VINCE #1159 |
| eslerm | frr merged patch on 2023-08-29 bcb6b58d9 ("bgpd:
Use treat-as-withdraw for tunnel encapsulation attribute")
quagga does not implement RFC 7606 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
frr Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Needs triage
|
|
| jammy |
Needs triage
|
|
| lunar |
Needs triage
|
|
| upstream |
Needs triage
|
|
|
Patches: upstream: https://github.com/FRRouting/frr/commit/bcb6b58d9530173df41d3a3cbc4c600ee0b4b186 |
||
|
quagga Launchpad, Ubuntu, Debian |
trusty |
Ignored
(end of standard support)
|
| xenial |
Not vulnerable
(code not present)
|
|
| bionic |
Not vulnerable
(code not present)
|
|
| focal |
Not vulnerable
(code not present)
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| upstream |
Not vulnerable
(code not present)
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |