CVE-2020-14378: Integer Underflow
First published: Wed Sep 16 2020(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Dpdk Data Plane Development Kit | >=18.02.1<18.11.10 | |
| Dpdk Data Plane Development Kit | >=19.02<19.11.5 | |
| Canonical Ubuntu Linux | =20.04 | |
| openSUSE Leap | =15.1 | |
| openSUSE Leap | =15.2 | |
| redhat/dpdk | <18.11.10 | 18.11.10 |
| redhat/dpdk | <19.11.5 | 19.11.5 |
| ubuntu/dpdk | <19.11.3-0ubuntu0.2 | 19.11.3-0ubuntu0.2 |
| debian/dpdk | 20.11.10-1~deb11u1 20.11.6-1~deb11u1 22.11.5-1~deb12u1 23.11.1-2 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html
- http://www.openwall.com/lists/oss-security/2021/01/04/1
- http://www.openwall.com/lists/oss-security/2021/01/04/2
- http://www.openwall.com/lists/oss-security/2021/01/04/5
- https://bugzilla.redhat.com/show_bug.cgi?id=1879473
- https://usn.ubuntu.com/4550-1/
- https://www.openwall.com/lists/oss-security/2020/09/28/3
- https://launchpad.net/bugs/cve/CVE-2020-14378
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1883277
- https://access.redhat.com/security/cve/cve-2020-14378
- https://bugs.dpdk.org/show_bug.cgi?id=272
- https://git.dpdk.org/dpdk-stable/commit/?id=7a5af91f8bf46f121cc1a7873045ef37f63d56c2
- https://git.dpdk.org/dpdk-stable/commit/?id=fd9dd27602a6494663ace53f0d52122ed9f0de1c
- https://security-tracker.debian.org/tracker/CVE-2020-14378
- https://ubuntu.com/security/notices/USN-4550-1
- https://www.cve.org/CVERecord?id=CVE-2020-14378
- https://nvd.nist.gov/vuln/detail/CVE-2020-14378
- https://ubuntu.com/security/CVE-2020-14378
Frequently Asked Questions
What is CVE-2020-14378?
CVE-2020-14378 is an integer underflow vulnerability in dpdk versions before 18.11.10 and before 19.11.5 in the `move_desc` function.
What is the severity of CVE-2020-14378?
CVE-2020-14378 has a severity level of 3.3 (low).
How can CVE-2020-14378 be exploited?
An attacker could cause the `move_desc` function of dpdk to get stuck in a 4,294,967,295-count iteration loop.
Which versions of dpdk are affected by CVE-2020-14378?
dpdk versions before 18.11.10 and before 19.11.5 are affected by CVE-2020-14378.
How can I fix CVE-2020-14378?
To fix CVE-2020-14378, update dpdk to version 18.11.10 or later, or version 19.11.5 or later.
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