Description
The receive_ra function in rdisc/nm-lndp-rdisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in NetworkManager 1.x allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message, a similar issue to CVE-2015-2922.
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 | 1.0.2-1 | — |
| Debian 13 | network-manager | 1.0.2-1 | — |
| Debian 12 | network-manager | 1.0.2-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | ModemManager +4 | 1.1.0-8.git20130913.el7 | RHSA-2015:2315 |
| RHEL 7 | NetworkManager +13 | 1:1.0.6-27.el7 | RHSA-2015:2315 |
| RHEL 7 | NetworkManager-libreswan +1 | 1.0.6-3.el7 | RHSA-2015:2315 |
| RHEL 7 | libnm-gtk +3 | 1.0.6-2.el7 | RHSA-2015:2315 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | NetworkManager | 1.4.2-1.2 | openSUSE-SU-2024:10152-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | ModemManager +4 | 1.1.0-8.git20130913.el7 | ELSA-2015-2315 |
| Oracle Linux 7 | NetworkManager +13 | 1:1.0.6-27.0.1.el7 | ELSA-2015-2315 |
| Oracle Linux 7 | NetworkManager-libreswan +1 | 1.0.6-3.el7 | ELSA-2015-2315 |
| Oracle Linux 7 | libnm-gtk +3 | 1.0.6-2.el7 | ELSA-2015-2315 |
Advisories 3
- RHSA-2015:2315 Red Hat Security Advisory: NetworkManager security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- openSUSE-SU-2024:10152-1 NetworkManager-1.4.2-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-2315 Moderate: NetworkManager security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 24, 2015
References
- [oss-security] 20150404 Re: CVE Request : IPv6 Hop limit lowering via RA messages mailing-list
- GLSA-201509-05 vendor-advisory
- 76879 vdb-entry
- FEDORA-2015-7623 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- FEDORA-2015-7767 vendor-advisory