Vulnerability · Published Aug 24, 2024 · Assigned by mitre
CVE-2024-45237
Critical 9.8
In plain English
A critical-severity buffer overflow in the fort-validator package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | fort-validator | 1.5.4-1+deb12u1 | DEBIAN-CVE-2024-45237 |
| Debian:13 | fort-validator | 1.6.3-1 | DEBIAN-CVE-2024-45237 |
| Debian:14 | fort-validator | 1.6.3-1 | DEBIAN-CVE-2024-45237 |
| Ubuntu:22.04:LTS | fort-validator | 1.5.3-1ubuntu0.1 | USN-7813-1 |
| Ubuntu:22.04:LTS | fort-validator | 1.5.3-1ubuntu0.1 | UBUNTU-CVE-2024-45237 |
Affected products (as reported)
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H