The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of ISC BIND: overload via NXNSAttack On Recursive Resolvers

Synthesis of the vulnerability 

An attacker can trigger an overload via NXNSAttack On Recursive Resolvers of ISC BIND, in order to trigger a denial of service.
Vulnerable systems: Debian, BIG-IP Hardware, TMOS, HP-UX, AIX, IBM API Connect, IBM i, BIND, Junos OS, Junos Space, SRX-Series, openSUSE Leap, Solaris, DNS protocol, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 3/4.
Creation date: 19/05/2020.
Revision date: 25/05/2020.
Références of this weakness: 6244244, 6344107, CERTFR-2020-AVI-302, CERTFR-2021-AVI-033, CVE-2020-8616, DLA-2227-1, DSA-4689-1, HPESBUX04128, JSA11090, JSA11110, K97810133, openSUSE-SU-2020:1699-1, openSUSE-SU-2020:1701-1, RHSA-2020:2338-01, RHSA-2020:2344-01, RHSA-2020:2345-01, RHSA-2020:2383-01, RHSA-2020:2404-01, RHSA-2020:3272-01, RHSA-2020:3378-01, RHSA-2020:3379-01, RHSA-2020:3433-01, RHSA-2020:3470-01, RHSA-2020:3471-01, RHSA-2020:3475-01, SSA:2020-140-01, SUSE-SU-2020:14400-1, SUSE-SU-2020:2914-1, USN-4365-1, USN-4365-2, VIGILANCE-VUL-32300.

Description of the vulnerability 

An attacker can trigger an overload via NXNSAttack On Recursive Resolvers of ISC BIND, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This vulnerability bulletin impacts software or systems such as Debian, BIG-IP Hardware, TMOS, HP-UX, AIX, IBM API Connect, IBM i, BIND, Junos OS, Junos Space, SRX-Series, openSUSE Leap, Solaris, DNS protocol, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this security note is important.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this cybersecurity note.

Solutions for this threat 

ISC BIND: version 9.16.3.
The version 9.16.3 is fixed:
  https://downloads.isc.org/isc/bind9/9.16.3/

ISC BIND: version 9.14.12.
The version 9.14.12 is fixed:
  https://downloads.isc.org/isc/bind9/9.14.12/

ISC BIND: version 9.11.19.
The version 9.11.19 is fixed:
  https://downloads.isc.org/isc/bind9/9.11.19/

AIX: patch for BIND.
A patch is available:
  https://aix.software.ibm.com/aix/efixes/security/bind_fix17.tar

Debian 8: new bind9 packages.
New packages are available:
  Debian 8: bind9 1:9.9.5.dfsg-9+deb8u19

Debian 9-10: new bind9 packages.
New packages are available:
  Debian 9: bind9 1:9.10.3.dfsg.P4-12.3+deb9u6
  Debian 10: bind9 1:9.11.5.P4+dfsg-5.1+deb10u1

HP-UX: patch for BIND.
The version C.9.11.1.5.0 is fixed.

IBM API Connect: patch for ISC BIND.
A patch is indicated in information sources.

IBM i: patch for BIND.
A patch is indicated in information sources.

Juniper Junos Space: version 20.3R1.
The version 20.3R1 is fixed:
  https://www.juniper.net/support/downloads/

Junos OS SRX: fixed versions for BIND.
Fixed versions are indicated in information sources.

openSUSE Leap 15.1: new bind packages.
New packages are available:
  openSUSE Leap 15.1: bind 9.16.6-lp151.11.9.1

openSUSE Leap 15.2: new bind packages.
New packages are available:
  openSUSE Leap 15.2: bind 9.16.6-lp152.14.3.1

Oracle Solaris: patch for third party software of April 2020 v3.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 6.10: new bind packages.
New packages are available:
  RHEL 6.10: bind 9.8.2-0.68.rc1.el6_10.7

RHEL 6.5: new bind packages.
New packages are available:
  RHEL 6.5: bind 9.8.2-0.23.rc1.el6_5.9

RHEL 6.6: new bind packages.
New packages are available:
  RHEL 6.6: bind 9.8.2-0.30.rc1.el6_6.11

RHEL 7.2: new bind packages.
New packages are available:
  RHEL 7.2: bind 9.9.4-29.el7_2.9

RHEL 7.3: new bind packages.
New packages are available:
  RHEL 7.3: bind 9.9.4-50.el7_3.4

RHEL 7.4: new bind packages.
New packages are available:
  RHEL 7.4: bind 9.9.4-51.el7_4.4

RHEL 7.6: new bind packages.
New packages are available:
  RHEL 7.6: bind 9.9.4-74.el7_6.4

RHEL 7.7: new bind packages.
New packages are available:
  RHEL 7.7: bind 9.11.4-9.P2.el7_7.2

RHEL 7-8: new bind packages.
New packages are available:
  RHEL 7.8: bind 9.11.4-16.P2.el7_8.6
  RHEL 8.0: bind 9.11.4-19.P2.el8_0
  RHEL 8.1: bind 9.11.4-26.P2.el8_1.3
  RHEL 8.2: bind 9.11.13-5.el8_2

Slackware: new bind packages.
New packages are available:
  Slackware 14.0: bind 9.11.19-*-1_slack14.0
  Slackware 14.1: bind 9.11.19-*-1_slack14.1
  Slackware 14.2: bind 9.11.19-*-1_slack14.2

SUSE LE 11 SP3-4: new bind packages.
New packages are available:
  SUSE LE 11 SP3: bind 9.9.6P1-0.51.20.1
  SUSE LE 11 SP4: bind 9.9.6P1-0.51.20.1

SUSE LE 15: new bind packages.
New packages are available:
  SUSE LE 15 RTM: bind 9.16.6-12.32.1
  SUSE LE 15 SP1: bind 9.16.6-12.32.1
  SUSE LE 15 SP2: bind 9.16.6-12.32.1

Ubuntu: new bind9 packages.
New packages are available:
  Ubuntu 20.04 LTS: bind9 1:9.16.1-0ubuntu2.1
  Ubuntu 19.10: bind9 1:9.11.5.P4+dfsg-5.1ubuntu2.2
  Ubuntu 18.04 LTS: bind9 1:9.11.3+dfsg-1ubuntu1.12
  Ubuntu 16.04 LTS: bind9 1:9.10.3.dfsg.P4-8ubuntu1.16
  Ubuntu 14.04 ESM: bind9 1:9.9.5.dfsg-3ubuntu0.19+esm2
  Ubuntu 12.04 ESM: bind9 1:9.8.1.dfsg.P1-4ubuntu0.30
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides applications vulnerabilities bulletins. The technology watch team tracks security threats targeting the computer system.