tcpreplay 4.3.0 beta1 en10mb.c dlt_en10mb_encode Packet memory corruption

CVSS Meta Temp Score
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5.3$0-$5k0.00

A vulnerability was found in tcpreplay 4.3.0 beta1. It has been declared as critical. This vulnerability affects the function dlt_en10mb_encode of the file plugins/dlt_en10mb/en10mb.c. The manipulation as part of a Packet leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Tcpreplay 4.3.0 beta1. A heap-based buffer over-read was triggered in the function dlt_en10mb_encode() of the file plugins/dlt_en10mb/en10mb.c, due to inappropriate values in the function memmove(). The length (pktlen + ctx -> l2len) can be larger than source value (packet + ctx->l2len) because the function fails to ensure the length of a packet is valid. This leads to Denial of Service.

The bug was discovered 10/04/2018. The weakness was shared 10/03/2018 (Website). The advisory is available at github.com. This vulnerability was named CVE-2018-17974 since 10/03/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 120955 (Fedora 29 : tcpreplay (2018-5f91054677)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (120955). The entries 120264, 124571, 124573 and 125684 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
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NVD Base Score: 5.5
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 120955
Nessus Name: Fedora 29 : tcpreplay (2018-5f91054677)
Nessus File: 🔍
Nessus Risk: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

10/03/2018 🔍
10/03/2018 +0 days 🔍
10/03/2018 +0 days 🔍
10/04/2018 +1 days 🔍
10/04/2018 +0 days 🔍
01/06/2019 +94 days 🔍
01/07/2019 +1 days 🔍
05/22/2023 +1596 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-5f91054677
Status: Not defined

CVE: CVE-2018-17974 (🔍)
See also: 🔍

Entryinfo

Created: 10/04/2018 14:56
Updated: 05/22/2023 08:47
Changes: 10/04/2018 14:56 (69), 03/29/2020 16:20 (3), 05/22/2023 08:43 (4), 05/22/2023 08:47 (1)
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