Allocation of Resources Without Limits or Throttling Affecting bind-pkcs11-libs package, versions <32:9.11.4-26.P2.el7_9.14
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-CENTOS7-BINDPKCS11LIBS-5733709
- published 22 Jun 2023
- disclosed 21 Jun 2023
Introduced: 21 Jun 2023
CVE-2023-2828 Open this link in a new tabHow to fix?
Upgrade Centos:7
bind-pkcs11-libs
to version 32:9.11.4-26.P2.el7_9.14 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bind-pkcs11-libs
package and not the bind-pkcs11-libs
package as distributed by Centos
.
See How to fix?
for Centos:7
relevant fixed versions and status.
Every named
instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the max-cache-size
statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit.
It has been discovered that the effectiveness of the cache-cleaning algorithm used in named
can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured max-cache-size
limit to be significantly exceeded.
This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
References
- https://access.redhat.com/security/cve/CVE-2023-2828
- http://www.openwall.com/lists/oss-security/2023/06/21/6
- https://kb.isc.org/docs/cve-2023-2828
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/
- https://security.netapp.com/advisory/ntap-20230703-0010/
- https://www.debian.org/security/2023/dsa-5439
- https://lists.debian.org/debian-lts-announce/2023/07/msg00021.html