Suricata 4.1.3 Type decode-ethernet.c DecodeEthernet Network Packet memory corruption

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CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability was found in Suricata 4.1.3. It has been rated as problematic. This issue affects the function DecodeEthernet of the file decode-ethernet.c of the component Type Handler. The manipulation as part of a Network Packet leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. Impacted is availability. The summary by CVE is:

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.

The weakness was presented 08/28/2019 (Website). The advisory is shared at suricata-ids.org. The identification of this vulnerability is CVE-2019-10056 since 03/25/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/08/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 140989, 140990, 140991 and 140992 for similar entries.

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VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

03/25/2019 🔍
08/28/2019 +156 days 🔍
08/29/2019 +1 days 🔍
08/08/2020 +345 days 🔍

Sourcesinfoedit

Advisory: suricata-ids.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-10056 (🔍)
See also: 🔍

Entryinfoedit

Created: 08/29/2019 08:39 AM
Updated: 08/08/2020 08:45 AM
Changes: (1) advisory_confirm_url
Complete: 🔍

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