Denial of service in Cloudflare cfrpki
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3761 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
cfrpki Server applications / Other server solutions |
| Vendor | Cloudflare |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU63861
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3761
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can disable RPKI Origin Validation in a victim network to perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionscfrpki: 1.0.0 - 1.2.2
External linkshttp://github.com/cloudflare/cfrpki/security/advisories/GHSA-c8xp-8mf3-62h9
http://www.debian.org/security/2022/dsa-5041
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
