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Debian Security Bug TrackerDEBIANCVE:CVE-2022-38177HistorySep 21, 2022 - 11:15 a.m.
CVE-2022-38177
2022-09-2111:15:09
Debian Security Bug Tracker
security-tracker.debian.org
20
spoofing
resolver
ecdsa
signature
memory leak
named
lack of resources
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.003 Low
EPSS
Percentile
66.3%
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | bind9 | < 1:9.17.20-1 | bind9_1:9.17.20-1_all.deb |
| Debian | 11 | all | bind9 | < 1:9.16.33-1~deb11u1 | bind9_1:9.16.33-1~deb11u1_all.deb |
| Debian | 999 | all | bind9 | < 1:9.17.20-1 | bind9_1:9.17.20-1_all.deb |
| Debian | 13 | all | bind9 | < 1:9.17.20-1 | bind9_1:9.17.20-1_all.deb |
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7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
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0.003 Low
EPSS
Percentile
66.3%
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