Description
An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the `move_desc` function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause `move_desc` to get stuck in a 4,294,967,295-count iteration loop. Depending on how `vhost_crypto` is being used this could prevent other VMs or network tasks from being serviced by the busy DPDK lcore for an extended period.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | dpdk | All dpdk versions before 18.11.10 and before 19.11.5 | — |
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 | dpdk | 19.11.5-1 | — |
| Debian 13 | dpdk | 19.11.5-1 | — |
| Debian 12 | dpdk | 19.11.5-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | dpdk | 19.11.3-0ubuntu0.2 | USN-4550-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | dpdk +1 | 19.11.4-3.9.1 | SUSE-SU-2020:2770-1 |
| SLES 15 SP1 | dpdk | 18.11.9-4.12.1 | SUSE-SU-2020:2769-1 |
| SLES 15 | dpdk +1 | 18.11.9-3.25.1 | SUSE-SU-2020:2767-1 |
| SLES 12 SP5 | dpdk +1 | 18.11.9-3.15.1 | SUSE-SU-2020:2768-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 | dpdk | 18.11.9-3.25.1 | SUSE-SU-2020:2767-1 |
| SLES for SAP 12 SP5 | dpdk +1 | 18.11.9-3.15.1 | SUSE-SU-2020:2768-1 |
| SLE HPC 15 | dpdk +1 | 18.11.9-3.25.1 | SUSE-SU-2020:2767-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | dpdk | 19.11.8-2.7 | openSUSE-SU-2024:10727-1 |
| openSUSE Leap 15.2 | dpdk | 19.11.4-lp152.2.8.1 | openSUSE-SU-2020:1599-1 |
| openSUSE Leap 15.1 | dpdk | 18.11.9-lp151.3.8.1 | openSUSE-SU-2020:1593-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | ceph | 18.2.2-1 | — |
Advisories 8
- USN-4550-1 dpdk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2020:2770-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1599-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2768-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2769-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2767-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10727-1 dpdk-19.11.8-2.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1593-1 Security update for dpdk SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://www.openwall.com/lists/oss-security/2020/09/28/3
- https://bugzilla.redhat.com/show_bug.cgi?id=1879473
- USN-4550-1 vendor-advisory
- openSUSE-SU-2020:1593 vendor-advisory
- openSUSE-SU-2020:1599 vendor-advisory
- [oss-security] 20210104 Re: [dpdk-dev] DPDK security advisory for multiple vhost crypto issues mailing-list
- [oss-security] 20210104 Re: DPDK security advisory for multiple vhost crypto issues mailing-list
- [oss-security] 20210104 Re: [dpdk-dev] DPDK security advisory for multiple vhost crypto issues mailing-list