CVE-2022-36440

frr: Reachable assertion in peek_for_as4_capability function

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.

Se encontró una afirmación accesible en Frrouting frr-bgpd 8.3.0 en la función peek_for_as4_capability. Los atacantes pueden construir maliciosamente paquetes abiertos BGP y enviarlos a pares BGP que ejecutan frr-bgpd, lo que resulta en DoS.

A reachable assertion flaw was found in Frrouting frr-bgpd in the peek_for_as4_capability function. This flaw allows an attacker to maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in a denial of service.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-07-25 CVE Reserved
2023-04-03 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-11-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-617: Reachable Assertion

CAPEC

References (9)

URL	Tag	Source
https://github.com/spwpun/pocs	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html	Mailing List

URL	Date	SRC
https://github.com/spwpun/pocs/blob/main/frr-bgpd.md	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD	2024-02-01
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L	2024-02-01
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI	2024-02-01
https://www.debian.org/security/2023/dsa-5495	2024-02-01
https://access.redhat.com/security/cve/CVE-2022-36440	2023-11-07
https://bugzilla.redhat.com/show_bug.cgi?id=2184468	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Frrouting Search vendor "Frrouting"		Frrouting Search vendor "Frrouting" for product "Frrouting"				8.3 Search vendor "Frrouting" for product "Frrouting" and version "8.3"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				36 Search vendor "Fedoraproject" for product "Fedora" and version "36"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				37 Search vendor "Fedoraproject" for product "Fedora" and version "37"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				12.0 Search vendor "Debian" for product "Debian Linux" and version "12.0"		-		Affected