CVE-2018-7323: High severity Wireshark Wireshark vulnerability

Published Feb 23, 2018
·
Updated

In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-wccp.c had a large loop that was addressed by ensuring that a calculated length was monotonically increasing.

Affected Software

23 affected componentsFixes available
Wireshark Wireshark>=2.2.0<=2.2.12
Wireshark Wireshark>=2.4.0<=2.4.4
Debian Debian Linux=7.0
Debian Debian Linux=8.0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.2.15-r0
2.2.15-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0
alpine/wireshark>=2.2.0<2.4.5-r0
2.4.5-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade alpine/wireshark to a version that resolves this vulnerability.

    Fixed in 2.4.5-r0
  2. Upgrade

    Upgrade alpine/wireshark to a version that resolves this vulnerability.

    Fixed in 2.2.15-r0

Event History

Feb 23, 2018
CVE Published
via MITRE·10:00 PM
Data Sourced
via MITRE·10:00 PM
Description
Data Sourced
via NVD·10:29 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·10:29 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2018-7323?

CVE-2018-7323 is classified as a medium severity vulnerability due to its potential to cause denial of service.

2

How do I fix CVE-2018-7323?

To fix CVE-2018-7323, upgrade Wireshark to the latest version, specifically version 2.4.5 or later.

3

What versions of Wireshark are affected by CVE-2018-7323?

CVE-2018-7323 affects Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12.

4

Can CVE-2018-7323 be exploited remotely?

CVE-2018-7323 could potentially be exploited remotely if a malicious packet is sent to a vulnerable Wireshark version.

5

What is the nature of the vulnerability in CVE-2018-7323?

CVE-2018-7323 involves a large loop in the WCCP dissector that could lead to excessive resource consumption.

Company

Resources

Contact

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