CVE-2020-26420: Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file

Medium severity · published Dec 11, 2020

CVE-2020-26420

Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file

5.3

CVSS

2.7%

EPSS

On KEV

Description

Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)2.7% · higher than 86% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Fedora · Fedoraproject

32; 33 · source: NVD

Wireshark · Wireshark

3.2.0 through 3.2.8; 3.4.0 · source: NVD

Zfs Storage Appliance Kit · Oracle

8.8 · source: NVD

Affected product

Fedora

Fedoraproject

All Fedora CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-26420

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-26420

Third Party Advisory

https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26420.json

Exploit

https://gitlab.com/wireshark/wireshark/-/issues/16994

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y/

lists.fedoraproject.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z/

Third Party Advisory

https://security.gentoo.org/glsa/202101-12

Patch

https://www.oracle.com/security-alerts/cpuApr2021.html