Skip to content
Fencer Vulns
high 7.5

CVE-2022-38177 json

Memory leak in ECDSA DNSSEC verification code

published 2022-09-21 4 y ago modified 2026-09-01 2 mo ago also EUVD-2022-40773

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

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.

Patch / fix

  • bind9 Debian 14, Debian 13, Debian 12 1:9.17.20-1

debian advisories DEBIAN-CVE-2022-38177

  • bind9 Ubuntu 18.04 LTS 1:9.11.3+dfsg-1ubuntu1.18
  • bind9 Ubuntu 20.04 LTS 1:9.16.1-0ubuntu2.11
  • bind9 Ubuntu Pro 14.04 LTS 1:9.9.5.dfsg-3ubuntu0.19+esm7
  • bind9 Ubuntu Pro 16.04 LTS 1:9.10.3.dfsg.P4-8ubuntu1.19+esm3

ubuntu advisories UBUNTU-CVE-2022-38177

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • bind9.16 RHEL 8 32:9.16.23-0.7.el8_6.1
  • bind9.16-libs RHEL 8 32:9.16.23-0.7.el8_6.1
  • bind9.16-utils RHEL 8 32:9.16.23-0.7.el8_6.1
  • bind9.16-chroot RHEL 8 32:9.16.23-0.7.el8_6.1
  • bind9.16-license RHEL 8 32:9.16.23-0.7.el8_6.1
  • python3-bind9.16 RHEL 8 32:9.16.23-0.7.el8_6.1
  • bind9.16-dnssec-utils RHEL 8 32:9.16.23-0.7.el8_6.1
  • bind RHEL 9 32:9.16.23-1.el9_0.1

red hat advisories RHSA-2022:6781RHSA-2022:6763RHSA-2022:8598RHSA-2022:6780RHSA-2022:6778RHSA-2022:6779

  • bind SLE Module for Server Applications 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 9.16.33-150400.5.11.1
  • bind SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES for SAP 15 +18 more 9.16.6-150000.12.63.1
  • bind SLE Module for Server Applications 15 SP3, SLE Module for Basesystem 15 SP4, SLE Module for Basesystem 15 SP3 +2 more 9.16.6-150300.22.21.2
  • bind SLES 12 SP3-BCL, SLES 12 SP2-BCL 9.9.9P1-63.37.1
  • bind SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 9.11.22-3.43.1

suse advisories SUSE-SU-2022:3767-1SUSE-SU-2022:3729-1SUSE-SU-2022:3682-1SUSE-SU-2022:3500-1SUSE-SU-2022:3499-1

  • bind AlmaLinux 8 32:9.11.36-3.el8_6.1
  • bind-sdb AlmaLinux 8 32:9.11.36-3.el8_6.1
  • bind-libs AlmaLinux 8 32:9.11.36-3.el8_6.1
  • bind-utils AlmaLinux 8 32:9.11.36-3.el8_6.1
  • bind-chroot AlmaLinux 8 32:9.11.36-3.el8_6.1
  • bind-pkcs11 AlmaLinux 8 32:9.11.36-3.el8_6.1
  • bind-license AlmaLinux 8 32:9.11.36-3.el8_6.1
  • python3-bind AlmaLinux 8 32:9.11.36-3.el8_6.1

almalinux advisories ALSA-2022:6778ALSA-2022:6781ALSA-2022:6763

  • bind9.16 Rocky Linux 8 2:9.16.23-0.7.el8_6.1
  • bind Rocky Linux 8 2:9.11.36-3.el8_6.1
  • bind Rocky Linux 9 2:9.16.23-1.el9_0.1

rocky linux advisories RLSA-2022:6781RLSA-2022:6778RLSA-2022:6763

  • bind Alpine 3.16, Alpine 3.15, Alpine 3.14 +1 more 9.16.33-r0
  • bind Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 9.18.7-r0

alpine advisories ALPINE-CVE-2022-38177

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • bind CBL-Mariner 2.0 9.16.33-1
  • dhcp CBL-Mariner 2.0 4.4.3-2

azure linux advisories AZL-11001AZL-39986

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-38177 updated cvss 7.5

bind: memory leak in ECDSA DNSSEC verification code

  • Red Hat CodeReady Linux Builder (v. 9) bind-libs 9.16.23-1.el9_0.1
    fixed: vendor fix RHSA-2022:6763
  • Red Hat Enterprise Linux AppStream (v. 8) bind 9.11.36-3.el8_6.1, bind-sdb 9.11.36-3.el8_6.1, bind-libs 9.11.36-3.el8_6.1, bind-utils 9.11.36-3.el8_6.1, bind9.16 9.16.23-0.7.el8_6.1, bind-chroot 9.11.36-3.el8_6.1, +11 more
    fixed: vendor fix RHSA-2022:6778
  • Red Hat Enterprise Linux AppStream (v. 9) bind 9.16.23-1.el9_0.1, bind-libs 9.16.23-1.el9_0.1, bind-utils 9.16.23-1.el9_0.1, bind-chroot 9.16.23-1.el9_0.1, bind-license 9.16.23-1.el9_0.1, python3-bind 9.16.23-1.el9_0.1, +1 more
    fixed: vendor fix RHSA-2022:6763
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) bind 9.11.4-26.P2.el8_1.6, bind-sdb 9.11.4-26.P2.el8_1.6, bind-libs 9.11.4-26.P2.el8_1.6, bind-utils 9.11.4-26.P2.el8_1.6, bind-chroot 9.11.4-26.P2.el8_1.6, bind-pkcs11 9.11.4-26.P2.el8_1.6, +6 more
    fixed: vendor fix RHSA-2022:6764
  • Red Hat Enterprise Linux AppStream EUS (v. 8.2) bind 9.11.13-6.el8_2.4, bind-sdb 9.11.13-6.el8_2.4, bind-libs 9.11.13-6.el8_2.4, bind-utils 9.11.13-6.el8_2.4, bind-chroot 9.11.13-6.el8_2.4, bind-pkcs11 9.11.13-6.el8_2.4, +6 more
    fixed: vendor fix RHSA-2022:6780
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) bind 9.11.26-4.el8_4.1, bind-sdb 9.11.26-4.el8_4.1, bind-libs 9.11.26-4.el8_4.1, bind-utils 9.11.26-4.el8_4.1, bind-chroot 9.11.26-4.el8_4.1, bind-pkcs11 9.11.26-4.el8_4.1, +6 more
    fixed: vendor fix RHSA-2022:6779
  • Red Hat Enterprise Linux BaseOS (v. 8) bind 9.11.36-3.el8_6.1, bind-export-libs 9.11.36-3.el8_6.1
    fixed: vendor fix RHSA-2022:6778
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) bind 9.11.4-26.P2.el8_1.6, bind-export-libs 9.11.4-26.P2.el8_1.6
    fixed: vendor fix RHSA-2022:6764
show 7 more
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) bind 9.11.13-6.el8_2.4, bind-export-libs 9.11.13-6.el8_2.4
    fixed: vendor fix RHSA-2022:6780
  • Red Hat Enterprise Linux BaseOS EUS (v.8.4) bind 9.11.26-4.el8_4.1, bind-export-libs 9.11.26-4.el8_4.1
    fixed: vendor fix RHSA-2022:6779
  • Red Hat Enterprise Linux Client (v. 7) bind 9.11.4-26.P2.el7_9.10, bind-libs 9.11.4-26.P2.el7_9.10, bind-utils 9.11.4-26.P2.el7_9.10, bind-license 9.11.4-26.P2.el7_9.10, bind-libs-lite 9.11.4-26.P2.el7_9.10, bind-export-libs 9.11.4-26.P2.el7_9.10 Red Hat Enterprise Linux Client Optional (v. 7) bind 9.11.4-26.P2.el7_9.10, bind-sdb 9.11.4-26.P2.el7_9.10, bind-chroot 9.11.4-26.P2.el7_9.10, bind-pkcs11 9.11.4-26.P2.el7_9.10, bind-sdb-chroot 9.11.4-26.P2.el7_9.10, bind-pkcs11-libs 9.11.4-26.P2.el7_9.10, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) bind 9.11.4-26.P2.el7_9.10, bind-sdb 9.11.4-26.P2.el7_9.10, bind-chroot 9.11.4-26.P2.el7_9.10, bind-pkcs11 9.11.4-26.P2.el7_9.10, bind-sdb-chroot 9.11.4-26.P2.el7_9.10, bind-pkcs11-libs 9.11.4-26.P2.el7_9.10, +1 more
    fixed: vendor fix RHSA-2022:6765
  • Red Hat Enterprise Linux CRB (v. 8) bind9.16-libs 9.16.23-0.7.el8_6.1, python3-bind9.16 9.16.23-0.7.el8_6.1, bind9.16-dnssec-utils 9.16.23-0.7.el8_6.1
    fixed: vendor fix RHSA-2022:6781
  • Red Hat Enterprise Linux Server (v. 7) bind 9.11.4-26.P2.el7_9.10, bind-libs 9.11.4-26.P2.el7_9.10, bind-utils 9.11.4-26.P2.el7_9.10, bind-chroot 9.11.4-26.P2.el7_9.10, bind-pkcs11 9.11.4-26.P2.el7_9.10, bind-license 9.11.4-26.P2.el7_9.10, +4 more Red Hat Enterprise Linux Server Optional (v. 7) bind-sdb 9.11.4-26.P2.el7_9.10, bind-sdb-chroot 9.11.4-26.P2.el7_9.10 Red Hat Enterprise Linux Workstation (v. 7) bind 9.11.4-26.P2.el7_9.10, bind-libs 9.11.4-26.P2.el7_9.10, bind-utils 9.11.4-26.P2.el7_9.10, bind-chroot 9.11.4-26.P2.el7_9.10, bind-pkcs11 9.11.4-26.P2.el7_9.10, bind-license 9.11.4-26.P2.el7_9.10, +4 more Red Hat Enterprise Linux Workstation Optional (v. 7) bind-sdb 9.11.4-26.P2.el7_9.10, bind-sdb-chroot 9.11.4-26.P2.el7_9.10
    fixed: vendor fix RHSA-2022:6765
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host 4.5.3-202211170828_8.6, redhat-virtualization-host-image-update 4.5.3-202211170828_8.6
    fixed: vendor fix RHSA-2022:8598
  • Red Hat Enterprise Linux 6 bind, bind-sdb, bind-libs, bind-utils, bind-chroot Red Hat Enterprise Linux 9 dhcp, dhcp-relay, dhcp-client, dhcp-common, dhcp-server Red Hat RHEL 8-based RHEV-H for RHEV 4 (build requirements) redhat-release-virtualization-host 4.5.3-1.el8ev, redhat-virtualization-host-productimg 4.5.3-1.el8, redhat-release-virtualization-host-content 4.5.3-1.el8ev, redhat-virtualization-host-image-update-placeholder 4.5.3-1.el8ev
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-105-08 updated cvss 7.5

ABB M2M Gateway

  • ABB M2M Gateway >=4.1.2, <=5.0.3, >=5.0.1, <=5.0.3
    affected: mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

3.29% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • ISC BIND9

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.