CLSA-2026-1791261872
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1791261872.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1791261872
- Upstream
- Published
- 2026-10-19T14:45:10Z
- Modified
- 2026-10-26T09:43:32Z
- Summary
- unbound: Fix of 4 CVEs
- Details
-
- CVE-2026-81634: bounds-check the scratch buffer in rrset_canonical() and rrset_canonicalize_to_buffer() before writing the RRSIG rdata, the first canonical owner name and each RR's rdata, so a large rrset can no longer be written past the end of the buffer
- CVE-2026-80225: cap the number of pipelined TCP/DoT queries drained per event-loop visit in tcp_req_info_read_again() and tcp_more_read_again() and defer the remainder via a zero-delay timer, so one connection can no longer starve the other file descriptors
- CVE-2026-85501: bound the DNSSEC validation work per query (ReTrap): add the val-validation-attempts and val-hash-attempts limits (default 32), limit DNSKEY/RRSIG and DS key-tag matches and the NSEC/NSEC3 records checked per message, shorten oversized referral DS RRsets, stop validator restarts once the limits are hit, and require only the answer and authority sections to be secure; the built-in val-clean-additional default is now no, the shipped unbound.conf keeps val-clean-additional: yes
- References
Affected packages
TuxCare:CentOS-Stream:8 / python3-unbound
Package
- Name
- python3-unbound
- Purl
- pkg:rpm/tuxcare/python3-unbound?distro=centos-stream-8
TuxCare:CentOS-Stream:8 / unbound
Package
- Name
- unbound
- Purl
- pkg:rpm/tuxcare/unbound?distro=centos-stream-8
TuxCare:CentOS-Stream:8 / unbound-devel
Package
- Name
- unbound-devel
- Purl
- pkg:rpm/tuxcare/unbound-devel?distro=centos-stream-8