Description
The set_ipv6() function in zscan_rfc1035.rl in gdnsd before 2.4.3 and 3.x before 3.2.1 has a stack-based buffer overflow via a long and malformed IPv6 address in zone data.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gdnsd | 3.5.0-1 | — |
| Debian 13 | gdnsd | 3.5.0-1 | — |
| Debian 12 | gdnsd | 3.5.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | gdnsd | No fix yet | — |
| Ubuntu 18.04 LTS | gdnsd | No fix yet | — |
| Ubuntu 16.04 LTS | gdnsd | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.23 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.22 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.21 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.20 | gdnsd | 2.4.3-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.18 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.17 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.16 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.15 | gdnsd | 2.4.3-r0 | — |
| Alpine v3.14 | gdnsd | 2.4.3-r0 | — |