CVE-2020-26419

2021-01-2512:26:55

redhat.com

access.redhat.com

wireshark

memory leak

packet dissectors

denial of service

system availability

cve-2020-26419

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

0.003

Percentile

71.3%

JSON

A memory leak was discovered in Wireshark while decoding packets captured in a pcap file or coming from the network. Multiple packet dissectors are potentially affected by this issue. A remote attacker may abuse this flaw by sending specially crafted packets that, when processed, would make Wireshark consume excessive CPU resources resulting in a denial of service. The highest threat from this vulnerability is to system availability.