Description
Insecure permissions in DNSCrypt-proxy v2.0.0alpha9 to v2.1.5 allows non-privileged attackers to escalate privileges to root via overwriting the binary dnscrypt-proxy.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | dnscrypt-proxy | No fix yet | — |
| Ubuntu 25.10 | dnscrypt-proxy | No fix yet | — |
| Ubuntu 20.04 LTS | dnscrypt-proxy | No fix yet | — |
| Ubuntu 18.04 LTS | dnscrypt-proxy | No fix yet | — |
| Ubuntu 16.04 LTS | dnscrypt-proxy | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | dnscrypt-proxy | No fix yet | — |
| Ubuntu Pro 24.04 LTS | dnscrypt-proxy | No fix yet | — |
| Ubuntu Pro 22.04 LTS | dnscrypt-proxy | No fix yet | — |