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CVE-2022-38177

Date: September 21, 2022

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.

Language: C

Severity Score

Related Resources (14)

https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html
https://security.netapp.com/advisory/ntap-20221228-0010/
http://www.openwall.com/lists/oss-security/2022/09/21/3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
https://security-tracker.debian.org/tracker/CVE-2022-38177
https://www.debian.org/security/2022/dsa-5235
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
https://security.alpinelinux.org/vuln/CVE-2022-38177
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
https://nvd.nist.gov/vuln/detail/CVE-2022-38177
https://kb.isc.org/docs/cve-2022-38177
https://access.redhat.com/security/cve/CVE-2022-38177
https://security.gentoo.org/glsa/202210-25
https://www.mend.io/vulnerability-database/CVE-2022-38177

Severity Score

Weakness Type (CWE)

Improper Verification of Cryptographic Signature

CWE-347

Missing Release of Memory after Effective Lifetime

CWE-401

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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