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CVE

CVE-2022-2795

By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's pe

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.

MEDIUM · CVSS 5.3 EPSS 0.00484
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
▤

Affected Products & Versions

6
isc bind>= 9.0.0 and < 9.16.33
isc bind>= 9.18.0 and < 9.18.7
isc bind>= 9.19.0 and < 9.19.5
isc bindall versions
debian linuxall versions
fedoraproject fedoraall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security-officer@isc.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Sep 2022 · 11:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

16
suse-csafopenSUSE-SU-2024:12356-1
rhsaRHSA-2024:2720Important
rhsaRHSA-2023:2261Moderate
rhsaRHSA-2023:2792Moderate
suse-csafSUSE-SU-2022:3767-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2022/09/21/3Mailing ListPatchThird Party Advisory
https://kb.isc.org/docs/cve-2022-2795PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00007.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
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