Vulnerability · Published Aug 23, 2022 · Assigned by redhat
CVE-2021-3839
High 7.5
In plain English
A high-severity out-of-bounds read in dpdk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.7%top 22.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg->payload.inflight.num_queues`, possibly causing out-of-bounds memory read/write. Any software using DPDK vhost library may crash as a result of this vulnerability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | dpdk | 2:21.11.2-1.el9_1 | ALSA-2022:8263 |
| AlmaLinux:9 | dpdk-devel | 2:21.11.2-1.el9_1 | ALSA-2022:8263 |
| AlmaLinux:9 | dpdk-doc | 2:21.11.2-1.el9_1 | ALSA-2022:8263 |
| AlmaLinux:9 | dpdk-tools | 2:21.11.2-1.el9_1 | ALSA-2022:8263 |
| Debian:12 | dpdk | 20.11.5-1 | DEBIAN-CVE-2021-3839 |
| Debian:13 | dpdk | 20.11.5-1 | DEBIAN-CVE-2021-3839 |
| Debian:14 | dpdk | 20.11.5-1 | DEBIAN-CVE-2021-3839 |
| Rocky Linux:9 | dpdk | 2:21.11.2-1.el9_1 | RLSA-2022:8263 |
| Ubuntu:22.04:LTS | dpdk | 21.11.1-0ubuntu0.3 | UBUNTU-CVE-2021-3839 |
| Ubuntu:22.04:LTS | dpdk | 21.11.1-0ubuntu0.3 | USN-5401-1 |
Affected products (as reported)
Weakness: CWE-125
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2025882 x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2021-3839 x_refsource_MISC
- https://github.com/DPDK/dpdk/commit/6442c329b9d2ded0f44b27d2016aaba8ba5844c5 x_refsource_MISC