CVE-2022-40302
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Frrouting
PublishedMay 3, 2023
First seenMay 3, 2023
Weakness typeCWE-125Out-of-bounds read
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| frrouting frrouting | v ≤ 8.4 | — |
| debian debian_linux | 10.0, 11.0, 12.0 | — |
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