Description
An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.
Details
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| dnsdist | 2.0.0 | 2.0.3 |
References
Similar Threats
- High CVE-2026-33593
- Low CVE-2026-33597
- Medium CVE-2026-33598
- Medium CVE-2026-33602
- Medium CVE-2026-33254
Exploit Protection
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