Unrated severityNVD Advisory· Published Oct 27, 2021· Updated Sep 16, 2024
Lame cache can be abused to severely degrade resolver performance
CVE-2021-25219
Description
In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
50>=9.3.0 <=9.11.35, >=9.12.0 <=9.16.21, >=9.9.3-S1 <=9.11.35-S1, >=9.16.8-S1 <=9.16.21-S1, >=9.17.0 <=9.17.18+ 1 more
- (no CPE)range: >=9.3.0 <=9.11.35, >=9.12.0 <=9.16.21, >=9.9.3-S1 <=9.11.35-S1, >=9.16.8-S1 <=9.16.21-S1, >=9.17.0 <=9.17.18
- (no CPE)range: Open Source Branches 9.3 through 9.11 9.3.0 through versions before 9.11.36
- osv-coords48 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/almalinux/bindpkg:rpm/almalinux/bind-chrootpkg:rpm/almalinux/bind-develpkg:rpm/almalinux/bind-export-develpkg:rpm/almalinux/bind-export-libspkg:rpm/almalinux/bind-libspkg:rpm/almalinux/bind-libs-litepkg:rpm/almalinux/bind-licensepkg:rpm/almalinux/bind-lite-develpkg:rpm/almalinux/bind-pkcs11pkg:rpm/almalinux/bind-pkcs11-develpkg:rpm/almalinux/bind-pkcs11-libspkg:rpm/almalinux/bind-pkcs11-utilspkg:rpm/almalinux/bind-sdbpkg:rpm/almalinux/bind-sdb-chrootpkg:rpm/almalinux/bind-utilspkg:rpm/almalinux/python3-bindpkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/bind&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/htmldoc&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/htmldoc&distro=SUSE%20Package%20Hub%2015%20SP3
< 0+ 47 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: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 32:9.11.36-3.el8
- (no CPE)range: < 9.16.6-lp152.14.25.1
- (no CPE)range: < 9.16.6-12.57.1
- (no CPE)range: < 9.16.31-150400.5.6.1
- (no CPE)range: < 9.16.20-3.1
- (no CPE)range: < 1.9.12-bp153.2.15.1
- (no CPE)range: < 9.16.6-12.57.1
- (no CPE)range: < 9.16.6-150300.22.13.1
- (no CPE)range: < 9.16.31-150400.5.6.1
- (no CPE)range: < 9.16.6-12.57.1
- (no CPE)range: < 9.16.6-150300.22.13.1
- (no CPE)range: < 9.16.31-150400.5.6.1
- (no CPE)range: < 9.11.22-3.37.1
- (no CPE)range: < 9.11.22-3.37.1
- (no CPE)range: < 9.11.22-3.37.1
- (no CPE)range: < 1.9.12-bp153.2.15.1
Patches
Vulnerability mechanics
References
10- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGV7SA27CTYLGFJSPUM3V36ZWK7WWDI4/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTKC4E3HUOLYN5IA4EBL4VAQSWG2ZVTX/mitrevendor-advisory
- security.gentoo.org/glsa/202210-25mitrevendor-advisory
- www.debian.org/security/2021/dsa-4994mitrevendor-advisory
- lists.debian.org/debian-lts-announce/2021/11/msg00001.htmlmitremailing-list
- cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfmitre
- kb.isc.org/v1/docs/cve-2021-25219mitre
- security.netapp.com/advisory/ntap-20211118-0002/mitre
- www.oracle.com/security-alerts/cpuapr2022.htmlmitre
News mentions
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