2021-11-20
ALT-BU-2021-4360-1
Branch c9f2 update bulletin.
Closed vulnerabilities
Published: 2021-10-28
BDU:2022-00686
Уязвимость DNS-сервера BIND, связанная с неконтролируемым расходом ресурсов, позволяющая нарушителю вызвать отказ в обслуживании
Severity: MEDIUM (5.3)
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References:
Published: 2021-10-28
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2021-25219
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.
Severity: MEDIUM (5.3)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References:
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://kb.isc.org/v1/docs/cve-2021-25219
- https://kb.isc.org/v1/docs/cve-2021-25219
- [debian-lts-announce] 20211102 [SECURITY] [DLA 2807-1] bind9 security update
- [debian-lts-announce] 20211102 [SECURITY] [DLA 2807-1] bind9 security update
- FEDORA-2021-eb8dab50ba
- FEDORA-2021-eb8dab50ba
- FEDORA-2021-39b33260b8
- FEDORA-2021-39b33260b8
- FEDORA-2021-58e7b873b7
- FEDORA-2021-58e7b873b7
- GLSA-202210-25
- GLSA-202210-25
- https://security.netapp.com/advisory/ntap-20211118-0002/
- https://security.netapp.com/advisory/ntap-20211118-0002/
- DSA-4994
- DSA-4994
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpuapr2022.html