Description
An issue was discovered in adns before 1.5.2. It corrupts a pointer when a nameserver speaks first because of a wrong number of pointer dereferences. This bug may well be exploitable as a remote code execution.
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 | adns | 1.6.0-2 | — |
| Debian 13 | adns | 1.6.0-2 | — |
| Debian 12 | adns | 1.6.0-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | adns | No fix yet | — |
| Ubuntu 18.04 LTS | adns | No fix yet | — |
| Ubuntu 16.04 LTS | adns | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES 12 SP4 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES 12 SP3 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES 12 SP2 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES 11 SP4 | adns | 1.4-75.3.1 | SUSE-SU-2020:14399-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES for SAP 12 SP4 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES for SAP 12 SP3 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SLES for SAP 12 SP2 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SUSE OpenStack Cloud Crowbar 8 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SUSE OpenStack Cloud 8 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SUSE OpenStack Cloud 7 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | adns | 1.4-75.3.1 | SUSE-SU-2020:14399-1 |
| SUSE HPE Helion OpenStack 8 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
| SUSE Enterprise Storage 5 | adns | 1.4-103.3.1 | SUSE-SU-2020:1612-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | adns | 1.5.1-lp151.3.3.1 | openSUSE-SU-2020:0827-1 |
Advisories 3
- SUSE-SU-2020:14399-1 Security update for adns SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:0827-1 Security update for adns SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1612-1 Security update for adns SUSE / openSUSE Security Updates · Feb 4, 2026
References
- http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git
- https://www.chiark.greenend.org.uk/pipermail/adns-announce/2020/000004.html
- http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git%3Ba=blob%3Bf=changelog
- FEDORA-2020-530188bf36 vendor-advisory
- FEDORA-2020-e59bcaf702 vendor-advisory