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Alerts This Week
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Oracle Linux 10 dnsmasq Denial of Service Advisories ELSA-2026-19158

oracle
Calendar Grey July 17, 2026
Scroller Oracle
Oracle Linux 10 addresses important flaws in dnsmasq with crucial updates to ensure system stability and security.
The following updated rpms for Oracle Linux 10 have been uploaded to the Unbreakable Linux Network:

Summary

[2.90-7] - Prevent overflow in extract_name function (CVE-2026-2291) - Prevent DoS in DNSSEC validation (CVE-2026-4890) - Prevent out-of-bounds read in DNSSEC validation (CVE-2026-4891) - Prevent out-of-bounds write in DHCPv6 server (CVE-2026-4892) - Prevent source check avoidance by RFC 7871 client-subnet (CVE-2026-4893) - Prevent out-of-bounds read in extract_addresses (CVE-2026-5172) [2.90-6] - Prevent heap buffer overflow in cache via NAME_ESCAPE expansion (CVE-2026-2291)

Topics%20covered

Topics Covered

security advisory denial of service security update important Oracle dnsmasq

SRPMs

http://oss.oracle.com/ol10/SRPMS-updates/dnsmasq-2.90-7.el10_2.src.rpm

x86_64

dnsmasq-2.90-7.el10_2.x86_64.rpm dnsmasq-utils-2.90-7.el10_2.x86_64.rpm

aarch64

dnsmasq-2.90-7.el10_2.aarch64.rpm dnsmasq-utils-2.90-7.el10_2.aarch64.rpm

Severity
important
Lowest
Low
Medium
High
Critical

Related CVEs: CVE-2026-2291 CVE-2026-4890 CVE-2026-4891 CVE-2026-4892 CVE-2026-4893 CVE-2026-5172

Topics%20covered

Topics Covered

security advisory denial of service security update important Oracle dnsmasq

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