Description
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6. The decode_bundle function inside lib/ofp-actions.c is affected by a buffer over-read issue during BUNDLE action decoding.
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 | openvswitch | 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 | — |
| Debian 13 | openvswitch | 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 | — |
| Debian 12 | openvswitch | 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 | — |
| Debian 9 | openvswitch | 2.6.10-0+deb9u1 | DLA-2571-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | openvswitch | 2.9.2-0ubuntu0.18.04.3 | USN-3873-1 |
| Ubuntu 16.04 LTS | openvswitch | 2.5.5-0ubuntu0.16.04.2 | USN-3873-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | openvswitch +7 | 2.9.0-70.el7fdp.1 | RHSA-2018:3500 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 13 | openvswitch +6 | 2.9.0-83.el7fdp.1 | RHSA-2019:0081 |
| Red Hat OpenStack 10 | openvswitch +7 | 2.9.0-83.el7fdp.1 | RHSA-2019:0053 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | openvswitch | 2.7.6-3.23.1 | SUSE-SU-2018:4128-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | openvswitch | 2.7.6-3.23.1 | SUSE-SU-2018:4128-1 |
Advisories 6
- RHSA-2019:0081 Red Hat Security Advisory: openvswitch security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2019:0053 Red Hat Security Advisory: openvswitch security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2018:3500 Red Hat Security Advisory: openvswitch security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DLA-2571-1 openvswitch - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3873-1 openvswitch vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2018:4128-1 Security update for openvswitch SUSE / openSUSE Security Updates · Feb 4, 2026
References
- RHSA-2019:0053 vendor-advisory
- USN-3873-1 vendor-advisory
- RHSA-2018:3500 vendor-advisory
- https://github.com/openvswitch/ovs/commit/9237a63c47bd314b807cda0bd2216264e82edbe8
- RHSA-2019:0081 vendor-advisory
- [debian-lts-announce] 20210219 [SECURITY] [DLA 2571-1] openvswitch security update mailing-list