Unrated severityNVD Advisory· Published May 19, 2020· Updated Sep 16, 2024
BIND does not sufficiently limit the number of fetches performed when processing referrals
CVE-2020-8616
Description
A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor.
Affected products
58- osv-coords57 versionspkg:apk/chainguard/bindpkg:apk/chainguard/bind-devpkg:apk/chainguard/bind-dnssec-rootpkg:apk/chainguard/bind-dnssec-toolspkg:apk/chainguard/bind-docpkg:apk/chainguard/bind-libspkg:apk/chainguard/bind-pluginspkg:apk/chainguard/bind-toolspkg:apk/wolfi/bindpkg:apk/wolfi/bind-devpkg:apk/wolfi/bind-dnssec-rootpkg:apk/wolfi/bind-dnssec-toolspkg:apk/wolfi/bind-docpkg:apk/wolfi/bind-libspkg:apk/wolfi/bind-pluginspkg:apk/wolfi/bind-toolspkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/bind&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/libuv&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/libuv&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/sysuser-tools&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/sysuser-tools&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/bind&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/bind&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015
< 0+ 56 more
- (no CPE)range: < 0
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- (no CPE)range: < 0
- (no CPE)range: < 9.16.6-lp151.11.9.1
- (no CPE)range: < 9.16.6-lp152.14.3.1
- (no CPE)range: < 9.16.20-1.4
- (no CPE)range: < 1.18.0-lp151.3.3.1
- (no CPE)range: < 1.18.0-lp152.4.3.1
- (no CPE)range: < 2.0-lp151.4.3.1
- (no CPE)range: < 2.0-lp152.5.3.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.9.6P1-0.51.20.1
- (no CPE)range: < 9.9.6P1-0.51.20.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.11.2-3.17.1
- (no CPE)range: < 9.11.2-3.17.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.11.2-3.17.1
- (no CPE)range: < 9.11.2-3.17.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.11.2-3.17.1
- (no CPE)range: < 9.11.2-3.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 9.9.9P1-63.17.1
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- ISC/BIND9v5Range: 9.0.0 -> 9.11.18, 9.12.0 -> 9.12.4-P2, 9.14.0 -> 9.14.11, 9.16.0 -> 9.16.2, and releases 9.17.0 -> 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
13- lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlmitrevendor-advisoryx_refsource_SUSE
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlmitrevendor-advisoryx_refsource_SUSE
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/mitrevendor-advisoryx_refsource_FEDORA
- usn.ubuntu.com/4365-1/mitrevendor-advisoryx_refsource_UBUNTU
- usn.ubuntu.com/4365-2/mitrevendor-advisoryx_refsource_UBUNTU
- www.debian.org/security/2020/dsa-4689mitrevendor-advisoryx_refsource_DEBIAN
- www.nxnsattack.commitrex_refsource_MISC
- www.openwall.com/lists/oss-security/2020/05/19/4mitremailing-listx_refsource_MLIST
- kb.isc.org/docs/cve-2020-8616mitrex_refsource_CONFIRM
- lists.debian.org/debian-lts-announce/2020/05/msg00031.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20200522-0002/mitrex_refsource_CONFIRM
- www.synology.com/security/advisory/Synology_SA_20_12mitrex_refsource_CONFIRM
News mentions
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