Description
gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.
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 | connman | 1.36-2.1 | — |
| Debian 13 | connman | 1.36-2.1 | — |
| Debian 12 | connman | 1.36-2.1 | — |
| Debian 10 | connman | 1.36-2.1~deb10u1 | DSA-4847-1 |
| Debian 9 | connman | 1.33-3+deb9u2 | DLA-2552-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | connman | 1.36-2.3ubuntu0.1 | USN-6236-1 |
| Ubuntu 20.04 LTS | connman | 1.36-2ubuntu0.1 | USN-6236-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | connman | 1.35-6ubuntu0.1~esm1 | USN-6236-1 |
| Ubuntu Pro 16.04 LTS | connman | 1.21-1.2+deb8u1ubuntu0.1~esm1 | USN-6236-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP2 | connman | 1.39-bp152.4.3.1 | openSUSE-SU-2021:0452-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | connman | 1.40-2.2 | openSUSE-SU-2024:10692-1 |
| openSUSE Leap 15.2 | connman | 1.39-lp152.3.3.1 | openSUSE-SU-2021:0416-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | connman | 1.39-r0 | — |
| Alpine v3.23 | connman | 1.39-r0 | — |
| Alpine v3.22 | connman | 1.39-r0 | — |
| Alpine v3.21 | connman | 1.39-r0 | — |
| Alpine v3.20 | connman | 1.39-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | connman | 1.39-r0 | — |
| Alpine v3.18 | connman | 1.39-r0 | — |
| Alpine v3.17 | connman | 1.39-r0 | — |
| Alpine v3.16 | connman | 1.39-r0 | — |
| Alpine v3.15 | connman | 1.39-r0 | — |
| Alpine v3.14 | connman | 1.39-r0 | — |
| Alpine v3.13 | connman | 1.38-r4 | — |
Advisories 6
- USN-6236-1 connman vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DSA-4847-1 connman - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2552-1 connman - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10692-1 connman-1.40-2.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0452-1 Security update for connman SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0416-1 Security update for connman SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugzilla.suse.com/show_bug.cgi?id=1181751
- https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog
- https://www.openwall.com/lists/oss-security/2021/02/08/2
- https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1
- https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa
- [debian-lts-announce] 20210209 [SECURITY] [DLA 2552-1] connman security update mailing-list
- DSA-4847 vendor-advisory
- https://kunnamon.io/tbone/
- GLSA-202107-29 vendor-advisory