CVE-2023-46753

Publication date 26 October 2023

Last updated 19 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

Description

An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message without mandatory attributes, e.g., one with only an unknown transit attribute.

Read the notes from the security team

Status

Package Ubuntu Release Status
frr 25.10 questing
Fixed 8.4.4-1.1ubuntu2
25.04 plucky
Fixed 8.4.4-1.1ubuntu2
24.10 oracular
Fixed 8.4.4-1.1ubuntu2
24.04 LTS noble
Fixed 8.4.4-1.1ubuntu2
23.10 mantic
Fixed 8.4.4-1.1ubuntu1.1
23.04 lunar
Fixed 8.4.2-1ubuntu1.5
22.04 LTS jammy
Fixed 8.1-1ubuntu1.7
20.04 LTS focal
Fixed 7.2.1-1ubuntu0.2+esm2
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
quagga 25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 1.2.4-4ubuntu0.4
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty Ignored end of standard support

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Notes

sbeattie

the quagga project was renamed to frr

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
frr

Severity score breakdown

Parameter Value
Base score 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references