Description
GNOME NetworkManager version 1.10.2 and earlier contains a Information Exposure (CWE-200) vulnerability in DNS resolver that can result in Private DNS queries leaked to local network's DNS servers, while on VPN. This vulnerability appears to have been fixed in Some Ubuntu 16.04 packages were fixed, but later updates removed the fix. cf. https://bugs.launchpad.net/ubuntu/+bug/1754671 an upstream fix does not appear to be available at this time.
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 | network-manager | 1.12.0-2 | — |
| Debian 13 | network-manager | 1.12.0-2 | — |
| Debian 12 | network-manager | 1.12.0-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | network-manager | 1.10.6-2ubuntu1.2 | — |
| Ubuntu 16.04 LTS | network-manager | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | NetworkManager +14 | 1:1.12.0-6.el7 | RHBA-2018:3207 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | NetworkManager | 1.10.6-5.6.1 | SUSE-SU-2019:1369-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | NetworkManager | 1.32.10-2.1 | openSUSE-SU-2024:10602-1 |
| openSUSE Leap 15.0 | NetworkManager | 1.10.6-lp150.4.6.1 | openSUSE-SU-2019:1494-1 |
Advisories 4
- RHBA-2018:3207 Red Hat Bug Fix Advisory: NetworkManager bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2024:10602-1 NetworkManager-1.32.10-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1494-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1369-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Feb 4, 2026