Vulnerability in Isc Bind
CVE-2022-2795
By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
EPSS: 0.015 (71.3th percentile) — read the EPSS interpretation.
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:N/A:L.
Affected products
- Isc Bind — versions 9.9.3, 9.9.12, 9.9.13
- Isc Bind9 — versions Open Source Branches 9.0 through 9.16 9.0.0 through versions before 9.16.33, Open Source Branch 9.18 9.18.0 through versions before 9.18.7, Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions up to and including 9.11.37-S1
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 35, 36, 37
Public proof-of-concept exploits
References
- security-officer@isc.org (Patch, Vendor Advisory)
- security-officer@isc.org (mailing-list, Patch, Mailing List, Third Party Advisory)
- security-officer@isc.org (vendor-advisory, Third Party Advisory)
- security-officer@isc.org (vendor-advisory)
- security-officer@isc.org (vendor-advisory)
- security-officer@isc.org (vendor-advisory)
- security-officer@isc.org (mailing-list, Mailing List, Third Party Advisory)
- security-officer@isc.org (vendor-advisory, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2022-2795?
- CVE-2022-2795 is a medium-severity vulnerability in Isc Bind. CVSS score: 5.3/10. Published 2022-09-21.
- How severe is CVE-2022-2795?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-2795 known to be exploited?
- 21 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.