High severity7.5NVD Advisory· Published May 19, 2020· Updated Jun 17, 2026
CVE-2020-8617
CVE-2020-8617
Description
Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
59prior to March 2018+ 1 more
- (no CPE)range: prior to March 2018
- (no CPE)range: 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
- 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
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (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
Patches
Vulnerability mechanics
References
12- www.openwall.com/lists/oss-security/2020/05/19/4nvdMailing ListPatchThird Party Advisory
- kb.isc.org/docs/cve-2020-8617nvdPatchVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlnvdMailing ListThird Party Advisory
- packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.htmlnvdThird Party AdvisoryVDB Entry
- lists.debian.org/debian-lts-announce/2020/05/msg00031.htmlnvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20200522-0002/nvdThird Party Advisory
- usn.ubuntu.com/4365-1/nvdThird Party Advisory
- usn.ubuntu.com/4365-2/nvdThird Party Advisory
- www.debian.org/security/2020/dsa-4689nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/nvd
News mentions
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