CVE-2022-38177: Memory leak in ECDSA DNSSEC verification code

Published Sep 21, 2022
·
Updated

A flaw was found in the Bind package. By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak, resulting in crashing the program.

Other sources

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.

Memory leak in ECDSA DNSSEC verification code

— Microsoft

Affected Software

49 affected componentsFixes available
redhat/bind<32:9.11.4-26.P2.el7_9.10
32:9.11.4-26.P2.el7_9.10
redhat/bind<32:9.11.36-3.el8_6.1
32:9.11.36-3.el8_6.1
redhat/bind9.16<32:9.16.23-0.7.el8_6.1
32:9.16.23-0.7.el8_6.1
redhat/bind<32:9.11.4-26.P2.el8_1.6
32:9.11.4-26.P2.el8_1.6
redhat/bind<32:9.11.13-6.el8_2.4
32:9.11.13-6.el8_2.4
redhat/bind<32:9.11.26-4.el8_4.1
32:9.11.26-4.el8_4.1
redhat/bind<32:9.16.23-1.el9_0.1
32:9.16.23-1.el9_0.1
debian/bind9<=1:9.11.5.P4+dfsg-5.1+deb10u7
1:9.11.5.P4+dfsg-5.1+deb10u91:9.16.44-1~deb11u11:9.18.19-1~deb12u11:9.19.17-1
ISC BIND>=9.8.4<=9.16.32
ISC Bind Supported Preview=9.9.3-s1
ISC BIND=9.9.3-s1
ISC BIND=9.9.12-s1
ISC BIND=9.9.13-s1
ISC BIND=9.10.5-s1
ISC BIND=9.10.7-s1
ISC BIND=9.11.3-s1
ISC Bind Supported Preview=9.11.5-s3
ISC BIND=9.11.5-s3
ISC BIND=9.11.5-s5
ISC BIND=9.11.5-s6
ISC BIND=9.11.6-s1
ISC BIND=9.11.7-s1
ISC BIND=9.11.8-s1
ISC BIND=9.11.12-s1
ISC BIND=9.11.14-s1
ISC BIND=9.11.19-s1
ISC BIND=9.11.21-s1
ISC BIND=9.11.27-s1
ISC BIND=9.11.29-s1
ISC BIND=9.11.35-s1
ISC BIND=9.11.37-s1
ISC BIND=9.16.8-s1
ISC BIND=9.16.11-s1
ISC BIND=9.16.13-s1
ISC BIND=9.16.21-s1
ISC BIND=9.16.32-s1
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Fedoraproject Fedora=35
Fedoraproject Fedora=36
Fedoraproject Fedora=37
NetApp Active Iq Unified Manager Vmware Vsphere
redhat/bind<9.16.33
9.16.33
Microsoft cbl2 bind 9.16.33-1
Patch available
Microsoft cm1 bind 9.16.33-1
Patch available
Microsoft cbl2 dhcp 4.4.3-2
Patch available
Microsoft cbl2 dhcp 4.4.3.P1-2
Patch available
ISC BIND=9.9.3-s1
ISC BIND=9.11.5-s3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 32:9.11.4-26.P2.el7_9.10
  2. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 32:9.11.36-3.el8_6.1
  3. Upgrade

    Upgrade redhat/bind9.16 to a version that resolves this vulnerability.

    Fixed in 32:9.16.23-0.7.el8_6.1
  4. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 32:9.11.4-26.P2.el8_1.6
  5. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 32:9.11.13-6.el8_2.4
  6. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 32:9.11.26-4.el8_4.1
  7. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 32:9.16.23-1.el9_0.1
  8. Upgrade

    Upgrade debian/bind9 to a version that resolves this vulnerability.

    Fixed in 1:9.11.5.P4+dfsg-5.1+deb10u9Fixed in 1:9.16.44-1~deb11u1Fixed in 1:9.18.19-1~deb12u1Fixed in 1:9.19.17-1
  9. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 9.16.33
  10. Upgrade

    Upgrade BIND to a version that resolves this vulnerability.

    Fixed in 9.16.33
  11. Upgrade

    Upgrade BIND (Supported Preview Edition) to a version that resolves this vulnerability.

    Fixed in 9.16.33-S1

Event History

Sep 21, 2022
CVE Published
12:00 AM
Data Sourced
via Red Hat·08:42 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·10:15 AM
Data Sourced
via MITRE·10:15 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·11:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 24, 2022
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
DescriptionSeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the vulnerability ID for this flaw in the Bind package?

The vulnerability ID for this flaw in the Bind package is CVE-2022-38177.

2

What is the severity rating of CVE-2022-38177?

The severity rating of CVE-2022-38177 is high, with a value of 7.5.

3

What is the impact of CVE-2022-38177?

CVE-2022-38177 allows an attacker to trigger a small memory leak, potentially causing named to crash.

4

Which software versions are affected by CVE-2022-38177?

Software versions up to and excluding 9.16.33 of the Bind package are affected by CVE-2022-38177.

5

Where can I find more information about CVE-2022-38177?

You can find more information about CVE-2022-38177 in the references provided: [link1] [link2] [link3].

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