Description
An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case. NOTE: this behavior occurs in bgp_open_option_parse in the bgp_open.c file, a different location (with a different attack vector) relative to CVE-2022-40302.
Published: 2023-05-03
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3573-1 frr security update
Debian DSA Debian DSA DSA-5495-1 frr security update
History

No history.

Subscriptions

Debian Debian Linux
Frrouting Frrouting
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-03T12:14:40.214Z

Reserved: 2022-09-09T00:00:00.000Z

Link: CVE-2022-40318

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-05-03T12:16:27.800

Modified: 2024-11-21T07:21:18.503

Link: CVE-2022-40318

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-05-03T00:00:00Z

Links: CVE-2022-40318 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses