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CVE-2022-36440

Date: April 2, 2023

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.

Language: C

Severity Score

7.5

Related Resources (14)

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD/

Url: https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI/

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-36440

Url: https://www.debian.org/security/2023/dsa-5495

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L/

Url: https://github.com/spwpun/pocs

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L/

Url: https://security-tracker.debian.org/tracker/CVE-2022-36440

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD/

Url: https://github.com/spwpun/pocs/blob/main/frr-bgpd.md

Url: https://access.redhat.com/security/cve/CVE-2022-36440

Url: https://www.mend.io/vulnerability-database/CVE-2022-36440

Severity Score

7.5

Weakness Type (CWE)

Reachable Assertion

CWE-617

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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