Out-of-Bounds Affecting suricata package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.13% (50th percentile)

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  • Snyk IDSNYK-DEBIAN9-SURICATA-461926
  • published9 Sept 2019
  • disclosed28 Aug 2019

Introduced: 28 Aug 2019

CVE-2019-10056  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for Debian:9 suricata.

NVD Description

Note: Versions mentioned in the description apply only to the upstream suricata package and not the suricata package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

An issue was discovered in Suricata 4.1.3. The code mishandles the case of sending a network packet with the right type, such that the function DecodeEthernet in decode-ethernet.c is executed a second time. At this point, the algorithm cuts the first part of the packet and doesn't determine the current length. Specifically, if the packet is exactly 28 long, in the first iteration it subtracts 14 bytes. Then, it is working with a packet length of 14. At this point, the case distinction says it is a valid packet. After that it casts the packet, but this packet has no type, and the program crashes at the type case distinction.