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Redhat.comRH:CVE-2022-38178HistorySep 21, 2022 - 1:19 p.m.
CVE-2022-38178
2022-09-2113:19:11
redhat.com
access.redhat.com
17
bind package
dnssec verification
eddsa algorithm
memory leak
signature mismatch
spoofing
resolver
malformed signature
crashing program
CVSS3
7.5
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
EPSS
0.005
Percentile
75.2%
A flaw was found in the Bind package, where the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch. By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak, resulting in crashing the program.
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prion
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CVE-2022-38178 Memory leaks in EdDSA DNSSEC verification code
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(RHSA-2022:6764) Important: bind security update
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CVSS3
7.5
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
EPSS
0.005
Percentile
75.2%
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