CVE-2022-40318
First published: Wed May 03 2023(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/frr | <=6.0.2-2+deb10u1 | 7.5.1-1.1+deb10u1 7.5.1-1.1+deb11u2 8.4.4-1.1~deb12u1 8.4.4-1.1 |
| Frrouting bgpd | <=8.4 | |
| Debian | =10.0 | |
| Debian | =11.0 | |
| Debian | =12.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/FRRouting/frr/releases
- https://github.com/FRRouting/frr/issues/13427
- https://github.com/FRRouting/frr/issues/13480
- https://github.com/FRRouting/frr/commit/1117baca3c592877a4d8a13ed6a1d9bd83977487
- https://security-tracker.debian.org/tracker/CVE-2022-40318
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
- https://www.debian.org/security/2023/dsa-5495
Frequently Asked Questions
What is the severity of CVE-2022-40318?
The severity of CVE-2022-40318 is medium.
How does CVE-2022-40318 affect FRRouting?
CVE-2022-40318 affects FRRouting through version 8.4.
What is the potential impact of CVE-2022-40318?
CVE-2022-40318 can cause a denial of service by triggering an assertion failure and daemon restart or out-of-bounds read.
How can I fix CVE-2022-40318 in FRRouting?
To fix CVE-2022-40318 in FRRouting, you should update to the latest version available.
Where can I find more information about CVE-2022-40318?
You can find more information about CVE-2022-40318 on the GitHub releases and issues pages for FRRouting.
- collector/nvd-latest
- collector/security-tracker-debian
- agent/author
- agent/type
- agent/weakness
- agent/references
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/first-publish-date
- agent/source
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- package-manager/debian
- vendor/frrouting
- canonical/frrouting bgpd
- version/frrouting bgpd/8.4
- vendor/debian
- canonical/debian
- version/debian/10.0
- version/debian/11.0
- version/debian/12.0