Vulnerability in Dproxy-Nexgen Project
CVE-2022-33989
dproxy-nexgen (aka dproxy nexgen) uses a static UDP source port (selected randomly only at boot time) in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
Weakness classification (CWE)
References
- sourceforge.net/projects/dproxy/ (Third Party Advisory)
- www.usenix.org/conference/usenixsecurity22/presentation/jeitner (Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/08/14/3 (Exploit, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-33989?
- CVE-2022-33989 is a medium-severity vulnerability in Dproxy-Nexgen Project, classified under Insufficient Entropy. CVSS score: 5.3/10. Published 2022-08-15.
- How severe is CVE-2022-33989?
- Medium severity. CVSS v3 base score is 5.3 out of 10.