High [CVE-2026-97313] Denial of service via assertion failure in RPZ query processing
This high-severity Red Hat Linux advisory covers CVE-2026-97313; related products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Get an email when Red Hat Linux publishes the next one.
VulniPulse checks Red Hat Linux's security advisories around the clock and emails you new ones with the severity, the fixed version and the vendor's link. First month free, then US$15/month; we email you before the first charge.
Summary
Denial of service via assertion failure in RPZ query processing. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-617. Red Hat lists fixing advisory RHSA-2026:87309 with package bind-main-9.20.30-0.1.hum1.
Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 6 more.
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4; Red Hat package: bind9.16; and 2 more.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
- bind-main-9.20.30-0.1.hum1
- RHSA-2026:87309
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
Mitigation checklist
- Ensure all Response Policy Zones (RPZ) configured in `/etc/named.conf` use identical `recursive-only` settings. For example, ensure all RPZ definitions consistently specify `recursive-only yes;` or `recursive-only no;`, eliminating conflicting policies. Alternatively, limit recursive query privileges strictly to authorized clients by configuring the `allow-recursion` option with an access control list (ACL). After modifying the configuration, validate the syntax and reload the service: ``` named-checkconf systemctl reload named ``` Caveats: Aligning the `recursive-only` setting across RPZ zones may alter policy enforcement behavior for non-recursive queries. Restricting recursion prevents unauthorized networks from performing recursive lookups. Warning: Reloading or restarting the `named` service may cause a momentary pause in active DNS query processing.
Official advisory · high-confidence parse· fetched 8 days ago·verify at source
More Red Hat Linux advisories
- CVE-2026-111497Oct 22, 2026Out-of-Bounds Write in Google Brotli Decoder
- CVE-2026-109619Oct 21, 2026fatal error handling retains stale request state leading to use-after-free
- CVE-2026-109618Oct 21, 2026OOM bailout during request parsing leads to memory corruption and RCE
- CVE-2026-97229Oct 13, 2026integer overflow issue in CI/CD regular expression compiler
- CVE-2026-64849Aug 17, 2026Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed
- CVE-2026-53362Jul 4, 2026account for fraggap on the paged allocation path
Android app · Google Play
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.