CVE-2022-40302
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.
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 | <=8.4 | |
| 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/releases
- https://github.com/FRRouting/frr/issues/13427
- https://github.com/FRRouting/frr/issues/13480
- https://github.com/FRRouting/frr/commit/3e46b43e3788f0f87bae56a86b54d412b4710286
- https://security-tracker.debian.org/tracker/CVE-2022-40302
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
- https://www.debian.org/security/2023/dsa-5495
Frequently Asked Questions
What is CVE-2022-40302?
CVE-2022-40302 is a vulnerability discovered in bgpd in FRRouting (FRR) through 8.4, which allows attackers to cause a denial of service due to an assertion failure and daemon restart, or an out-of-bounds read, by crafting a BGP OPEN message with an option of type 0xff (Extended Length).
How does CVE-2022-40302 affect FRRouting?
CVE-2022-40302 affects FRRouting versions up to and including 8.4.
What is the severity of CVE-2022-40302?
The severity of CVE-2022-40302 is medium, with a CVSSv3 score of 6.5.
How can I fix CVE-2022-40302?
To fix CVE-2022-40302, it is recommended to upgrade FRRouting to version 8.4.2 or later.
Are there any references for CVE-2022-40302?
Yes, you can find references for CVE-2022-40302 at the following links: [GitHub Releases](https://github.com/FRRouting/frr/releases), [GitHub Issue #13427](https://github.com/FRRouting/frr/issues/13427), [GitHub Issue #13480](https://github.com/FRRouting/frr/issues/13480).
- collector/nvd-latest
- collector/security-tracker-debian
- collector/nvd-index
- agent/author
- agent/type
- agent/event
- 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
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/frrouting
- canonical/frrouting frrouting
- version/frrouting frrouting/8.4
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- version/debian debian linux/12.0