CVE-2022-38177

HIGHNVD 7.57.5—

7.5

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.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 78.9%
KEV: Not listed

Published

September 21, 2022

Last Modified

May 28, 2025

References (18)

security-officer@ischttp://www.openwall.com/lists/oss-security/2022/09/21/3
security-officer@ischttps://kb.isc.org/docs/cve-2022-38177
security-officer@ischttps://lists.debian.org/debian-lts-announce/2022/10/msg00007.html
security-officer@ischttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
security-officer@ischttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
security-officer@ischttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
security-officer@ischttps://security.gentoo.org/glsa/202210-25
security-officer@ischttps://security.netapp.com/advisory/ntap-20221228-0010/
security-officer@ischttps://www.debian.org/security/2022/dsa-5235
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/09/21/3
af854a3a-2127-422b-91ae-364da2661108https://kb.isc.org/docs/cve-2022-38177
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/

Patch Availability(10)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	bind9-host (1:9.18.1-1ubuntu1.2) @ jammy	2026-05-25	ubuntu
ubuntu	lwresd (1:9.10.3.dfsg.P4-8ubuntu1.19+esm3) @ xenial	2026-05-25	ubuntu
redhat	redhat-virtualization-host-0:4.5.3-202211170828_8.6	2022-11-22	redhat
redhat	bind-32:9.11.36-3.el8_6.1	2022-10-04	redhat
redhat	bind9.16-32:9.16.23-0.7.el8_6.1	2022-10-04	redhat
redhat	bind-32:9.11.13-6.el8_2.4	2022-10-04	redhat
redhat	bind-32:9.11.26-4.el8_4.1	2022-10-04	redhat
redhat	bind-32:9.11.4-26.P2.el8_1.6	2022-10-03	redhat
redhat	bind-32:9.16.23-1.el9_0.1	2022-10-03	redhat
redhat	bind-32:9.11.4-26.P2.el7_9.10	2022-10-03	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2022-38177?

CVE-2022-38177 is a high vulnerability published on 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.

When was CVE-2022-38177 disclosed?

CVE-2022-38177 was first published in the National Vulnerability Database on September 21, 2022, with the most recent update on May 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-38177 actively exploited?

CVE-2022-38177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-38177?

CVE-2022-38177 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-38177?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-38177, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-38177

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