Debian DLA-2444-1 : tcpdump security update

high Nessus Plugin ID 142825

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Synopsis

The remote Debian host is missing a security update.

Description

The ppp de-capsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

The buffer should be big enough to hold the captured data, but it doesn’t need to be big enough to hold the entire on-the-network packet, if we haven’t captured all of it.

For Debian 9 stretch, this problem has been fixed in version 4.9.3-1~deb9u2.

We recommend that you upgrade your tcpdump packages.

For the detailed security status of tcpdump please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/tcpdump

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected tcpdump package.

Plugin Details

Severity: High

ID: 142825

File Name: debian_DLA-2444.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/12/2020

Updated: 11/20/2020

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-8037

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:tcpdump, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2020

Vulnerability Publication Date: 11/4/2020

Reference Information

CVE: CVE-2020-8037

Detections

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