Bug 2263911 (CVE-2023-6516)
| Summary: | CVE-2023-6516 bind9: Specific recursive query patterns may lead to an out-of-memory condition | ||
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| Product: | [Other] Security Response | Reporter: | Marco Benatto <mbenatto> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | security-response-team |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | bind 9.16.48 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw was found in the `named` application, part of the bind9 package, which uses a cache database to speeds up DNS queries. To maintain its efficiency when running as a recursive name resolver, `named` performs a cache database clean up under certain conditions. This issue may allow an attacker to craft a continuous set of crafted queries, which can induce `named` to trigger the cleanup process with a high frequency, making the internal cleanup items queue to grow indefinitely. This can lead to an uncontrolled memory consumption and resource starvation, potentially making `named` consume all available memory in the host, leading to a Denial of Service of the targeted system.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2264065, 2264362 | ||
| Bug Blocks: | 2263895 | ||
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Description
Marco Benatto
2024-02-12 18:38:02 UTC
Created bind tracking bugs for this issue: Affects: fedora-all [bug 2264065] Created dhcp tracking bugs for this issue: Affects: fedora-all [bug 2264362] This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2024:1647 https://access.redhat.com/errata/RHSA-2024:1647 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2024:1648 https://access.redhat.com/errata/RHSA-2024:1648 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:1781 https://access.redhat.com/errata/RHSA-2024:1781 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2024:1789 https://access.redhat.com/errata/RHSA-2024:1789 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Extended Update Support Via RHSA-2024:1800 https://access.redhat.com/errata/RHSA-2024:1800 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2024:1803 https://access.redhat.com/errata/RHSA-2024:1803 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2024:2551 https://access.redhat.com/errata/RHSA-2024:2551 |