ALPINE-CVE-2021-3448
ALPINE-CVE-2021-3448
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
CVSS 4.0 · Medium · Fix available
- Published
- Updated
Stack: system
Affected products and versions
dnsmasq Alpine:v3.10
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.11
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.12
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.13
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.14
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.15
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.16
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.17
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.18
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.19
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.20
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.21
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.22
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.23
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0
dnsmasq Alpine:v3.24
- Affected ranges
- ECOSYSTEM: < 2.85-r0
Update to 2.85-r0