Bug 2326429 (CVE-2024-52616) - CVE-2024-52616 avahi: Avahi Wide-Area DNS Predictable Transaction IDs Key Information: Bug ID: 2326429 CVE ID: CVE-2024-52616 Title: avahi: Avahi Wide-Area DNS Predictable Transaction IDs Reported: 2024-11-15 09:55 UTC by OSIDB Bzimport Modified: 2024-11-15 13:40 UTC Status: NEW Product: Security Response Component: vulnerability Version: unspecified Hardware: All OS: Linux Priority: medium Severity: medium Assignee: Product Security DevOps Team Doc Type: 1 Doc Text: A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. This predictable behavior facilitates DNS spoofing attacks, allowing attackers to guess transaction IDs. Target Milestone: --- Depends On: 2326447, 2326448 Blocks: TreeView+ TreeView+: depends on / blocked Description: The sequential increment of DNS transaction IDs makes Avahi vulnerable to DNS spoofing, allowing attackers to inject malicious DNS records. This can compromise the integrity of DNS responses, redirecting users to potentially harmful domains. This vulnerability poses a greater risk as it directly undermines the integrity of DNS resolution, affecting all systems using Avahi for wide-area DNS queries unless mitigations are applied.