CVE-2022-36440
First published: Mon Apr 03 2023(Updated: )
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.
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 Frrouting | =8.3 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 | |
| Fedoraproject Fedora | =38 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Debian Debian Linux | =12.0 |
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Reference Links
- https://github.com/FRRouting/frr/issues/13202
- https://github.com/FRRouting/frrcommit/3e46b43e3788f0f87bae56a86b54d412b4710286
- https://github.com/spwpun/pocs/blob/main/frr-bgpd.md
- https://security-tracker.debian.org/tracker/CVE-2022-36440
- https://github.com/spwpun/pocs
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI/
- https://www.debian.org/security/2023/dsa-5495
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI/
Frequently Asked Questions
What is CVE-2022-36440?
CVE-2022-36440 is a vulnerability found in Frrouting frr-bgpd 8.3.0 that allows attackers to construct malicious BGP open packets, resulting in a denial-of-service (DoS) attack.
What is the severity of CVE-2022-36440?
The severity of CVE-2022-36440 is high, with a severity value of 7.5.
How does CVE-2022-36440 affect Frrouting?
CVE-2022-36440 affects Frrouting frr-bgpd 8.3.0, allowing attackers to exploit the vulnerability and cause a DoS attack.
How can I fix CVE-2022-36440?
To fix CVE-2022-36440, it is recommended to update Frrouting to version 8.4.4-1.1 or later.
Where can I find more information about CVE-2022-36440?
More information about CVE-2022-36440 can be found in the following references: [Reference 1](https://github.com/FRRouting/frr/issues/13202), [Reference 2](https://github.com/FRRouting/frrcommit/3e46b43e3788f0f87bae56a86b54d412b4710286), [Reference 3](https://github.com/spwpun/pocs/blob/main/frr-bgpd.md).
- collector/security-tracker-debian
- collector/nvd-index
- agent/author
- agent/type
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/references
- agent/severity
- agent/weakness
- agent/tags
- agent/description
- agent/softwarecombine
- agent/event
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/frrouting
- canonical/frrouting frrouting
- version/frrouting frrouting/8.3
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/36
- version/fedoraproject fedora/37
- version/fedoraproject fedora/38
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- version/debian debian linux/12.0