CVE-2021-25219

原始描述

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.

受影响的软件

• BIND 9 = 9.11.5= 9.16.13= 9.11.3= 9.11.21= 9.16.21= 9.11.12 修复版本: 9.17.19, 9.11.36, 9.16.22 精确匹配

详情

发布日期

2021-10-27

最后修改

2026-06-17

CVSS 向量

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

参考资料

• cve.org/CVE-2021-25219
• nvd.nist.gov/vuln/detail/CVE-2021-25219
• cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• kb.isc.org/v1/docs/cve-2021-25219
• lists.debian.org/debian-lts-announce/2021/11/msg00001.html
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E...
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y...
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y...
• security.gentoo.org/glsa/202210-25
• security.netapp.com/advisory/ntap-20211118-0002/
• www.debian.org/security/2021/dsa-4994
• www.oracle.com/security-alerts/cpuapr2022.html