Vulnerability CVE-2020-14378
Published: 2020-09-30

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.

Type:

CWE-190

 (Integer Overflow or Wraparound)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
DPDK -> Data plane development kit 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html
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
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